How to wire two amps to one sub

how to wire two amps to one sub A dual 2 ohm can be wired for 1 ohm or 4 ohm. I just built a large shop on the same property and I wanted to install another 200 amp subpanel in the shop. I think I had the opposite problem. Step Two: Factor for amp type – Class D on subs is 2. So in theory, you could run 2 subs, one off each channel output. Electrical current is measured in amps. Our subwoofer wiring calculator allows you to figure out how to wire your Dual 1 Ohm, Dual 2 Ohm, and Dual 4 Ohm subwoofers in several different qualities. 2. For Example: If the To wire out-of-phase one heater wire would be connected to pin 2 on one power tube and pin 7 on the other power tube. Sep 22, 2011 · Wiring one dual 4 ohm voice coil sub woofer to a 2 channel amplifier? is it possible to wire a subwoofer in this manner: a single 4 ohm dvc sub wired to a final impedance of 2 ohms is connected to each channel of a 2 channel amplifier so that each channel sees a 2 ohm load but the amplifier is not bridged. 081 - 0. This is one of the selling points of high end cables. A dual voice sub and the same amps can be done, but it needs to be effectively balanced. In this way, 2 speakers will be connected in series on 1 channel. You need to understand how different stringing configurations impact the voltage, current, and power of a solar array. If you're amplifier uses a wire instead of a terminal screw for power distribution: it will be a small blue or orange wire : This terminal should be connected to the power antenna wire coming out of your radio. Amp (+) to Sub (+) Step 2. These aren't overly complicated. Each Amp acts as one zone, meaning all speakers wired to a single Amp will play the same content at the same volume. Stereo one sub was stumped with an informed decision. And then just forget about connecting the wired speakers. The first is that 240-volt wiring requires two hot wires, not just one as 120-volt circuits do. In fact, you should make it a point to double-check the power handling of the speaker selector you buy. This will leave no neutral between the two sub panels, is this going to be a problem? You said: "Run the speaker wire from the amp to the sub in, and the run wire from the High out to the speakers". " I still never fully figured that one out. I already have an aftermarket headunit so this will complete my audio upgrade. I want to put a 200 amp panel in the laundry room with a 200 amp breaker. can my amp I power Aug 27, 2016 · Hi Kevin!Thank you for the response - it is helpful!Here is a description of the wires in the main panel - referring to the attached images. The second is that 240-volt circuits carry high-amp current. Secure all wiring using cable ties. Mar 02, 2015 · Aluminum is a lot cheaper, especially for long runs, but the size of wire needed for a typical 100 amp sub panel in garage or shed may exceed what the sub panel can handle. Then the "+" would go to the "master" amp and the "-" to the slave. Nov 18, 2003 · There is the obvious things, like making sure the panel is rated for the amps feeding it, making sure the breakers all have the same short circuit rating, but if you have a main disconnect on the outside of house, and a main 200 amp breaker in the panel, is there a problem with a panel having three 100 amp main breakers and a 60? Feb 15, 2010 · Its output is about 100 Watts RMS into a 4 ohm sub-woofer. May 16, 2009 · No harness, i think pre 03 the sub was located there. If this confused you or didn't help, check the manual of the amp you plan to use. The amplifier supplies the power needed for high-output 6x9 speakers to reach their full potential, filling your can with sound or blasting it out the windows at passersby. Run your 12v batter wire from your battery to your amplifier. rane. Circuit Breakers. In the sub-panel, the ground and neutral terminals are separated, unlike the main panel in the house where they tie together. Step 1. In this particular case, with a DVC driver, (two 8 ohm coils), a mono amp that puts out 160W at 4 ohms is approximately equal to a stereo or 2 channel amp that will output 80W per channel into 8 ohms. When you run cable for the left and right channels (like your front speakers, or your rear speakers), you should keep the length of the speaker wire the same. Mar 02, 2019 · Two characteristics of 240-volt wiring are important when you're installing a new circuit breaker. – The connections for the bridged subwoofer wiring depend on the amp. The tables and notes below expand and provide detail about the ampacity and temperature ratings of various wire sizes and gives a brief history of U. One of the nice things about the luxury of having two 200 amp sub-panels in the house is that you can use one for your heating appliances and use the other one for your lights and other low current appliances such as assorted electronics. If your preamp has left and right outputs, use two RCA cables for these. With an output of 125 watts per channel, an HDMI input to connect your TV, Apple AirPlay 2 capability, and a striking compact form factor that fits standard AV racks, the new Sonos Amp is quite simply our most versatile and most powerful wireless amplifier yet. For non-standard stereo wiring using multiple speakers, or bridged-mono amplifier operation, consult the amplifier owner's manual or the Crown website for details. 2,500 ft. The speaker wires are usually just bare wire ends. ) #2 XHHW-2 Wire for 100 Amp Sub-Panel. 2" means that there are two subwoofer outputs available so that two subwoofers can be used at the same time. That gives you one pos and one neg out for each sub. Just because it is a 100 amps sub panel does not mean you have to feed it with 100 amps. However, similar to bi-amping, bi-wiring requires you to use two cables. You will still need to connect both the right and left speaker wires through the subwoofer for the bass signal from both channels to be received by the subwoofer. They are Power Sound Audio V1801's. The speaker terminals are used if you want to connect a high-level connection from the receiver (or amp) to the sub. This will avoid the lights varying in brightness. S. It is class-D so it heats with about 20 Watts when its load is 4 ohms. The neutral wire goes on the neutral bus and the ground wire on the ground bus. (2. If there is only one set, the subwoofer will share the same receiver connections as the speakers. Run a separate 15- or 20-amp circuit for each of these watt-sucking appliances: garbage disposer, dishwasher, microwave, vent hood, trash compactor and Have 2 of these in my 2016 Mazda 3. In this case, let’s say we are going to wire them to a total, effective impedance of 2ohms. There are two main ways to add a subwoofer to your PA: via a crossover network or via a special submix. 32 mm or about 0. Wire each sub's coils in series wire one pos and one neg together on each sub. Okay, one with two females that i have an article about 2 ohm stereo sub hooked up time? There are only really two ways to connect 2 speakers to one amplifier – either in parallel or series. com I use the circuit here, in my mixers effects loop, to mono the whole system. P. At the preamp you would feed both amps from the main outs. They show a typical single channel wiring scheme. The power was clearly coming from the fuse box since #3 is labeled "Sub. If I only have one speaker can I wire up both the audio-out connections (left and right) to the same speaker using both sets of wire? Dec 03, 2020 · Connecting two amplifiers takes only three basic steps: Run speaker wire from the back of one amplifier into input A on the back of the switch box, making sure to connect right to right and left to left, and positive to positive and negative to negative. You then run speaker cables from amp to sub to speakers. The smaller the gauge the larger the wire, hence the more amps it can deliver to your electrical run. Do not connect sub black to amp black or you may damage your amp if it is in fact balanced. The 110-120-volt circuits have two conductors -- one neutral (white) wire and one hot (black) wire. In my basement I used two different wiring gauges, #12 and #14, which deliver 20 and 15 amps respectively. As a general rule of thumb, most speaker selectors don’t like high powered amps. You also have to look at your system as a whole. Aug 01, 2020 · New construction, 200 amp homline. I have one 800 watt kicker sub and one 400 watt crunch amp. Jan 29, 2020 · So, now you came to know that using an additional amplifier with the subwoofer are depends on your choice and preference. Connect your speaker wires to these outputs -- one into each output. The first phase is to move the panel due to some remodeling. If a remote wire is not available. As of now, the amp is plenty powerful. Connect the micro-USB cable to the wireless transmitter and the power supply, then plug into a wall outlet. , do not install a 20amp breaker on 14/2 wire). The subwoofer is hooked up to the receiver with a single interconnect cable. There is also a ground wire; it will be colored green or copper. A Dual Voice Coil subwoofer offers multiple wiring options, such as parallel, series or independent. " But the thing that threw me was the fact that when we installed Chris's new radio, his sub didn't work until we hooked up a Blue wire in the stereo harness labeled "Power Antenna. Most amps will display how to wire this up with the connectors. Common sizes include 14-, 12-, 10-, 8-, 6-, and 2-gauge wire. 3 Jun 16, 2014 · A 4 channel amp should work just fine for what you are trying to do. My questions are: It is my understanding that the circuit to the garage can be either a single 240 volt or two 120 volt. Using one less wire size on the job also helps to decrease waste. For example, the diagram below shows you how you can turn a pair of 8Ω speakers into either a 16Ω or a 4Ω load. The main wire run I’m going to be installing is underground and it is approximately 300 feet away from the main electrical panel. Some single speaker combo amps have two non-detachable wires that come out of a grommeted hole in the chassis that are designed to connect to the speaker. ) First learn what colored wires should be connected to simulate your PC starting. wire both subs together to amp 1. The amplifier is a modest 20w RMS per channel. 9 to 23917 change zip +1-877-289-7664 Feb 10, 2008 · You can't. Go from you sub-output on the first reciever to an input on the 2nd reciever, then from there,you take speaker wire to the "in" of the passive sub. People commonly hook up two or more speakers to the same channel out of an amplifier in parallel. You can effortlessly connect a subwoofer in a car without an amp and use it for a long time. I have had many people over the years tell me it is easy to connect multiple speakers – all you have to do is wire the speakers in series. If the AVR had only a 5. Jan 23, 2020 · A Yes, to bi-wire your speakers, you can either connect two separate sets of speaker wire in the manner you describe or use special four-conductor cables designed for that purpose. Tighten the lug with a screwdriver. 5, 6, 7. Next you're going to connect the the positive and negative speaker wire to your subwoofers. Once turned on, the amp has to be hooked up a particular way. Right wire, no bond screw in the sub panel, separate ground bus bonded and grounded with new ground rod. p. Need to wire multiple amplifiers? Here is a very comprehensive demonstration of how it is done by daisy chaining them and or using Y splitters. Wiring multiple amps in a car, And how to wire up your car audio system with more than 1 amp, How to wire an amp kit, battery fuse / circuit breaker, distrib With one amp and one pair of speakers there would a pair of speaker cables going directly from the amplifier output jacks to the speaker jacks. Important: This is a general guide, never exceed 80% of the amphere rating. Other than any challenges posed by the guitar speaker cabinet itself, mounting a new speaker and wiring it in is easy. The Crossover Method The more popular method (and the one used by virtually every house PA system) is to run the output of the mixing console through a crossover network, which splits the signal into multiple frequency bands and sends each 200 / 12. americanaudiophile Titan. 05 to 2. VIEW DETAILS. Trying to use an amplifier for an Some subwoofers have two sets of spring clips which mean other speakers connect to the subwoofer wich pass along the audio signal while they connect to the receiver. Since you have the amp bridged and running to a single 4 ohm svc sub, unless it is a 8 or a 10 in sub, you do not have enuff power to run hardly anything. Then determine the amount of power your subwoofers can handle. Wire gauge refers the physical size of the wire, rated with a numerical designation that runs opposite to the diameter of the conductors—in other words, the smaller the wire gauge number, the larger the wire diameter. A separate ground rod is driven into the earth outside the shed, and the ground terminals connect to it. Sep 07, 2020 · Wiring in Series. Sep 28, 2020 · The best type of amp wiring kits will include: good quality RCA cables which are at least 16ft in length, positive wire at least 18ft in length, ground wire, speaker wire, remote wire, crimp ring terminals (which give you a stronger, more solid connection), good quality fuse holder & fuse, zip ties (to keep everything neat and tidy). 2)Use the feed through lugs and run 200 amp conductors to a 200 amp MLO subpanel. I suspect that this may produce Newer homes will have a 100-amp, 150-amp or 200-amp rating, while some older homes may have a 60-amp rating. That would run into the distribution block from which you would run two 8 ga wires, one to each amp. Can I connect my TV to Amp and wire four speakers, two front and two rear, if all are 8 ohms? Jul 30, 2018 · A series circuit is often a circuit through which components are connected along just one path, hence the current flows through one ingredient of get to the next one. 1) Run the speaker wire from your amp to the sub, then another set of speaker cables to your speakers. Jul 04, 2014 · Guitar cabinets with just one speaker in them are relatively easy to wire. In this video series you will learn how to install a subwoofer amplifier in the trunk of a 97-03 BMW 5 series/M5 (E39). The Fi BTL comes either dual 1 or dual 2 ohm. Jan 28, 2009 · Since you didn't identify your sub, we can't tell if you do. 4 ohm, it depends on what your amp can drive. Therefor, the two 8 ohm speakers in series became 16 ohms, then two 16 ohm “speakers” wired in parallel become 8 ohms. I am using 40 amps (@110 volts) two 20 amp breakers to feed my workshop and 40 amps @110 to feed my (in one room of my house) small AC on one circuit and small refrig and lights on the other circuit . In all cases, the hot lines are attached directly to the hot main buses. In fact, I would prefer that setup to a 2 amp setup. Amps can generally be safely wired at 4 or 2 ohms and some even at 1 ohm depending on their design. May 16, 2019 · Bi-amping two amplifiers to your speakers can greatly improve the sound quality of your audio system. Phase Switch Plugging Speaker Wire into your Subwoofer. If you haven't already read Running Speaker Wire, than you might not know a simple rule about speaker wire: length. Wiring in series is safe for your stereo but cannot give you an excellent experience of listening to music. 8. It is also used as a conductor in NM-B, UF-B, SER, SEU and MC. I am installing 2 dayton rs 6" 40 watts rms and 2 mb quart ptk tweeters 50watts rms into the Jul 10, 2007 · The specs on you amp are . Anybody buing that? Electrical Question: I’m wiring off of a panel and going to a sub panel with a breaker box that has a 100 amp rated capacity. We are very proud to bring you what we consider to be the absolute best value. Jan 10, 2013 · For 20-amp, 12/2 Romex is appropriate. For the sake of an example we will say 4 ga. Would a metered panel that has two 200-amp breakers in it and distribution work to feed the inside sub-panels as well? (e. If you'd like to use 6 speakers with the Amp, use the Sonos Architectural by Sonance. My question is this: if the sub panel is supplied by a single 60 amp two pole (220v) breaker (4/3 wire) circuit, can I (theoretically) put in two 60 amp single pole breakers in the sub panel (one for each pole), effectively making a multi-wire branch circuit within the sub-panel? Welcome to the CT Sounds Subwoofer Wiring Wizard. When two identical amps are biamped a vertical configuration is generally considered to be preferable to a horizontal configuration. Don't just Y two outputs to one input, to get mono for the sub. You can do this for under 100 dollars if you are smart about what you buy. I have 2 lengths of speaker wire. Stereo receivers, pre-amps, and integrated amplifiers rarely have subwoofer output jacks or offer bass-management options. 0 250 Aug 01, 2020 · New construction, 200 amp homline. These can be had for $5 or so. Can I have two 200 amp subpan … read more One downside to using high level outputs to the sub and line level to your left/right speakers is no high pass filter to the main speakers. Jan 17, 2004 · The speakers are not really tied to together electrically, and each speaker is free to act independent of the other one, but so long as they create very similar loads to the amp, they will work in unison fairly well as if they were one speaker. so I will be wiring the subs in parallel, and then I know I have to run the subs together in parallel in order to achieve 1 ohm from them. Step 2 – Understand Your Subwoofer. Also, ensure you've received a tester to test the voltage of the wire connections before and after working on them. Jan 02, 2013 · Thanks for your help. I have a 200 amp service with a 200 amp subpanel in my house. This method will raise the impedance to 8 ohms. I recently installed a sub panel in a storage building located about 150′ from my home. Loosen an available lug on the neutral bus, which is silver, and insert the end of the white wire. Being that I didn't have an amp at all, my dad (who's electronically retarded just like me) got me 2 amps, both Audiobahn A4002Ts. This is less dangerous than in series. For example a 500w 2 channel doesn't amount to 3/4 of a 500w mono. Dec 08, 2011 · Initially I was thinking of getting a monoblock for it, but if a viable solution exists I might get a 5-channel amp instead. $519. , audio signal) flows through a speaker wire, a small magnetic field is generated. Quick view Compare Add to Cart. With this switch box there would be suitably short cables (16AWG or other) from the jacks of the two amps going to the respective input jacks in the box. Each double-pole breaker connects to both of the bus bars (thus providing 240 volts between hot wires). 3 & 4. I’m feeding a 100 amp sub panel. 2 configuration. Thus one output woud connect to one line in and another out would connect to the other line in. Connecting 2 amplifiers (like a receiver to a self-powered sub) creates a problem: Each amp thinks it 'owns' the zero volt reference through it's power cord. Connect one side of negative speaker wire to the negative terminal on the sub box and the positive to the positive terminal. Mar 19, 2009 · First lets take a look at the sub. Unfortunately, you see about 2/3 to 3/4 of the power. If you have an subwoofer enclosure, There will be positive and negative terminals. If each speaker has an impedance below 8 ohms, you should wire them in series. This first video starts by removing the stock wiring and getting to the factory ground and LOC, then you'll start the connections and wiring for the ground for the new amp, then you'll mount the new amp and set up the connections at the amp, the next video covers the final Sep 15, 2017 · Wire two 4-ohm speakers in the same cabinet in series. wire. 5 amps) it would need to be installed with fixed wiring on a single branch circuit used for no other purpose, so a new dedicated circuit will be required. From this sub panel, I am feeding 2 – 20 amp circuits with #14 wire. How to Wire a Double 40 Amp Breaker for a Home A/C Unit. So what I did is went to Radio Shack and bought And that’s the perfect excuse to bi-amp your main speakers, using two amplifiers and two sets of wires to drive each. Attach the bare wire to the ground bus in the same way. Let’s associate all the speakers to one another. Connect those to another 30 amp double pole breaker in the shed sub panel and then jump them to the two hot bus bars in the sub panel. 3: from output of amp 1, wire an RCA to input of amp 2. 40x2 into 2 ohms stereo. If youre currently running both plugs from the amp to the sub its completely unnecessary,thats a 7. The power P in watts (W) is equal to the current I in amps (A), times the voltage V in volts (V): P (W) = I (A) × V (V) AC single phase amps to watts calculation. You do this by connecting the positive speaker wire from the amp to the positive terminal on the first subwoofer. #1 and #2 are the hot leads from the meter and #3 is the neutral lead from the meter. Although we strongly recommend using only one subwoofer without amplifier in the front deck. The split connects the mid and high frequency drivers to one set of terminals and the low frequency The two hot wires connect to the top two lugs of the breaker, called the "line" side of the breaker. My powered sub has two in and two out wire onnecions and only one rca type but the big one like a guitar amp plug. 400W RMS amps for a peak of 800W (I believe at 2 ohms). Black being negative while red is positive. Without getting into a discussion on the rational for the rule, there are methods to correct the problem without adding sub-panels that are within code. Plug your single 8-ohm cabinet into your 8-ohm amplifier. Our company is the culmination of years of development involving a team of dreamers, engineers, and designers. 03 and up its located under the center console. These two sets of terminals allows the speaker to be split into two independent sections. The speaker is connected to the + of the left channel and the - of the right channel. com Improper Amp Wiring One of the most common issues that can cause the amp and or the subwoofer to overheat is if the wiring isn't set up correctly. I wish they could accept 8ga wire but that is my only gripe. If you're only using 1 speaker/sub, you run it in Mono. . Can I wire each VC to a channel, or will there be any kind of problems? Thanks Matt Dec 22, 2005 · You are best off using two amps, one for the speakers and one for the sub(s). Connect an aux cable from the iPod to a red and white audio input on the amp. Final Tweaks. 5 Volts at 2Ω) times 50%; 500 * 0. Like I said, I am stereo stupid. This easy to follow silent and accurate video will guide you quickly and easily through what you'll need, (like a Power Supply, a sound system that has a Subwoofer Pre-output and a High Input adapter, which may already come with your amp. But for best practices, it will be best to use the thicker wire. 4 channel amplifiers 4 channel amplifiers have four amplifiers or "channels" in one package. The tables below are intended to be a general guide for wire size and amp ratings. So, what I do is parallel the coils at the box. The number of devices connected to the circuit usually determines how much current will flow through the wire. In a 240-volt circuit there is no neutral wire. 2 capabilities. On the back of your amplifier, you should find the speaker outputs. You can wire a 240-volt circuit to provide both 120 and 240 volts. The ". Most modern air compressors now will take a double pole 30 amp breaker . To install speakers with your Amp, you'll wire the + and - cables from the right speaker(s) back to your Amp, using the black and red ports marked right, and then again the same for the left. Splitting Two Wires On One Breaker. NEC wire sizing table changes. The amp I was planning on using is a 2 channel amp, so I cant bridge it for 2 ohm, and dont want to run it at 8 ohm. EDIT: The power ratings are just a bunch of lies. For Example: If the Red Wire: Remove 1/2" of the wire insulation from the red feeder wire and attach it to one of the lugs on the new circuit breaker. Second - and this is the one I'm not sure about. 5 amps). In a series circuit, voltages accumulate for all those components connected within the circuit, and currents are the same through all components. 1 & 2 on the amp for that. 2 out of 5 stars 34 $12. I should have been more clear. A 240-volt circuit has two hot wires that together make up 240 volts; each wire carries 120 volts. The following diagrams are the most popular wiring configurations. Subwoofers need lots of power so typically you will bridge the power from two channels into one to power the sub. 5 = 16 amps of expected average current draw. You cannot calculate power or wire size properly without knowing the impedance of your subwoofer speaker. When wiring a sub your aim should be to wire it to the lowest Ohms the amp can handle. If you are wanting to know how to wire your subs look no further than our wire diagram. my plan is to buy another 400 watt crunch amp and run them together is this possible? With most amps you can "strap" them at 2ohm, which puts each amp at 1ohm. The amp I am using is the AQ1200D and I want to be running it at 1 ohm. You will run one (fuse protected) power line from the battery into the cab. It’s always better to have a power wire that is larger than you need than a power wire that is too small. The garage sub panel has a one 20 amp circuit and one 15 amp circuit. 2. To put it simply, the lower the Ohms, the higher the power to you sub(s). It all just depends on the installers preference, and wiring the 2 subs together in parallel to one out put saves some wire (only a foot or two per job, but in a shop that adds up). In previous versions of the NEC 14 gauge wire was acceptable for 15 Amp circuits and in some local codes it may still be acceptable. C) Twin Subwoofers Many AV receivers can handle two subwoofers, which when placed correctly this can give a more even bass effect in greater listening positions instead of “the sweet spot” A crossover will: low pas the sub, high pass the tops, mono the sub signal, and give mad extra headroom in your amps, and loudspeakers. Don’t interface the front via the speaker wires. Nov 09, 2009 · Your amp is stable down to 1 ohm. The voltage drop given by this calculator is for one conductor (such as the power wire from the battery to an amplifier). 1) 15-15-12 (3. Oct 27, 2020 · If a 14-gauge wire is connected to a 20-amp circuit breaker or fuse, replace the breaker or fuse with one that is 15 amps to prevent the wire from overheating. Then out of the sub to the FRONT set of Polk 70s. Step One: 500 Watts (12. 30x2 into 4 ohms stereo. 8V the current is only 8. – Connect the 2 subwoofer RCAs from the Sony to the amp, let’s say ch. When I turn on the 100 amp double pull breaker to energize, it trips I am using 40 amps (@110 volts) two 20 amp breakers to feed my workshop and 40 amps @110 to feed my (in one room of my house) small AC on one circuit and small refrig and lights on the other circuit . This is unsafe and could lead to a fire. I bought a 2 channel amp and now I'm wondering if I needed a 4 channel. Remember, as gauges go up, the size of the wire goes down. Oct 12, 2017 · Correct me if I’m wrong, but here’s my understanding for connecting high level to a sub with 5-way binding posts and an integrated that doesn’t have a TT ground: run speaker cable between the amp and sub for the + of the R/L and don’t run anything for the – of the R/L, then run a single RCA connecting to the – on the pre and sub. 2/0 Black Stranded CU SIMpull THHN Wire Southwire’s THHN and THWN-2 is a multi-purpose Southwire’s THHN and THWN-2 is a multi-purpose building wire used in conduit and cable trays for service, feeders and branch circuits in commercial and industrial applications. This is a picture of the speaker wires inside the box. The rating tells you how much total current each of two vertical columns of individual circuit breakers can deliver at one time. Example. I really still want to use all 4 of the Polks + the sub. I would run one wire for several other reasons as well. In most cases, a 20-amp fuse or breaker should connect to a 12-gauge wire; a 30-amp fuse or breaker should connect to a 10-gauge wire. The reason why one of the cabs has 2 jacks is because the 2, 1x12's used to be 1 2x12's ;-) The box on the back of the original 2 x 12 cab had 2 jacks to select between stereo and mono. i had to run a wrie from the neg on the slave amp to the neg on my master amp and switch the slave amp to 180 degrees out of phase and run pos terminals to the neg on the sub and on the master amp run the pos terminals to pos on the sub. Aug 24, 2018 #3 Although, getting two amps to bi-amp drives us down another path. 2 amp, those outputs are for 2 subwoofers not a single connection to one - Id imagine only one output is even active unless youve purposefully enabled twin subs in the amp settings menu. The gas heater cannot be fed off or plugged into any receptacle fed off the garage circuit. If you still have the amp manual, it will show how to do this. 0 A. rearview mirror. The best way to be sure that your amp is set up properly is to check on the wiring with a professional's help. 1 features a variable bass boost with KickEQ™, giving you as much as a 6dB of extra bump with a simple turn of the optional CXARC Remote Bass Controller. Hooking up sound systems: www. Neutral Bus Bars. Wiring Gauges. If you need to connect just 2 pair of speakers to a HiFi stereo amplifier (that is, 2 speakers to 1 amp), see my article on How to connect 2 speakers to 1 amplifier. Mar 27, 2014 · Connect the amp's main power wire to the positive battery lead and reconnect the positive battery lead to the positive battery terminal. A subwoofer would be wired in a completely different way. Nov 13, 2010 · Not sure about the amp yet because I have been reading on a bunch of forums where people are running 2000+ RMS on each coil. 1. Aug 24, 2019 · Wiring Diagram Images Detail: Name: square d 100 amp panel wiring diagram – how to install a subpanel main lug inside sub panel wiring diagram rh techrush me Electrical Panel Wiring Square D Sub Panel Wiring Diagram Mar 06, 2012 · The circuit on the main panel feeding the garage has a two pole breaker labeled 30 amps. The amp is most likely a stereo amp with two channels. Keep it up RF. In amps with four power tubes (two pairs of parallel tubes in push-pull), we want the tubes in parallel wired out-of-phase but the connection between the two parallel pairs should be in-phase. To make sure that you can play a 2-channel stereo with a subwoofer, make sure the subwoofer can handle a high level of sound frequency input. That will split the subwoofer signal from the receiver into two, and then you can hook up both of your subs. This CX-Series Mono Amp is now one-ohm stable, giving you even more power and wiring options for your system! Using a Class-D power plant, the CXA800. In electrical wiring circuits, voltage drops also occur from the distribution board to the different sub circuit and final sub circuits, but for sub circuits and final sub circuits, the value of voltage drop should be half of that allowable voltage drops (i. 93 $274. You have to set all of the speakers in a line throughout the whole room from one front speaker to the other one. If you're wiring living areas, you can install 10 to 13 lights and receptacles on a single 15-amp circuit. Mine didn't even last a second and the sub was fried. 1)Use the feed through lugs you spoke of and feed a 200 amp fused switch at the panel with 150 amp wire using the tap rules put in 150 amp fuses and run 150 amp conductors to a 150 amp MLO subpanel. ft. 1 capability, then the ". Using an alternator with higher output capacity is dangerous and could cause a fire. Kicker Combo: ZX Amplifier + DC Comp Subs & Box + FREE CK8 Amp Kit 12dB … Are there RCA jacks - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website. Wiring a double-pole, 40-amp circuit breaker for a central air conditioning system is something that any moderately skilled DIY electrician Driving sub woofers Sub woofers require large amounts of power to move the speaker cone. 1" would mean that it only has one subwoofer output and thus only one mono or two channel are the best for subs but it depends on if your sub is dual voice coil or single voice coil, what ohm load the amp can handle, and if it is single voice coil and are using one Wiring two speakers in series doubles the impedance of one speaker. To get to 2 ohms with a single sub it either has to be a DVC (dual voice coil) 2 ohm (allowing 8 ohms or 2 ohms) sub, a SVC 2 ohm sub (pretty straightforward, one voicecoil, just straight up wire the positive and negative), or a DVC 1 ohm sub (allowing 2 ohms or . 2, and even 11. Locate the receptacles so you're never more than six feet away from one on each wall. It is a large speaker with large power handling ability. Jun 02, 2019 · Solar panel wiring (aka stringing), and how to string solar panels together, is a fundamental topic for any solar installer. So if you want to sub there you have to run the wires. 5) x 2) / 15= 40 amps of estimated current. Any problems here might lead to the wire to touch the Welcome to Rockville. Use the Amp with 2, 4, or 6 speakers. Nov 07, 2009 · Does anyone know when 4 wire conductors were required for the feed between the service panel and the sub panel. I was hooking up two amps to one sub speaker how to do it . 80x1 into 4 ohms bridged . Aug 27, 2008 14,938 138 103,240 7,780. You can get a new amp for less than $100 or even less if you buy something used. When I turn on the 100 amp double pull breaker to energize, it trips Wire is sized by the American Wire Gauge (AWG) system. Feb 15, 2010 · Its output is about 100 Watts RMS into a 4 ohm sub-woofer. Some subwoofers have left and right inputs. Using an amplifier/speaker setup in your car can boost the volume level and the quality of audio of your stereo system significantly. enclosure tuned to about 32Hz firing into the cabin on a R1200-1D. Additionally, I'd just go ahead and use 12 gauge 20 amp wire for your regular receptacles and lights. Then connect the amp to the power supply to simulate the car Head-Unit It’s also best practice to use #12 gauge (20 Amp) wires for plugs, so let’s talk about wiring gauges and what they mean. If you just two amplifiers rarely have to help understanding how to a subwoofer wiring diagrams are. I need to install a 50 amp spa panel for a new hot tub. They're 2ch. Below ia a quick guide of what size wire to use for the size of the current draw of the device. Amp Gauge Wiring 1) Always disconnect the ground lead from the vehicle battery before wiring any gauge. Dec 28, 2020 · The output must be four times the energy of one channel on the Sky. 4 cu. When I install the sub I imagine the following options: Using the 4-channel amp RCA output to send sound to the a monoblock. When an electrical current (i. However, two amps one sub is definitely possible. I started off two years ago with a Denon receiver and it just didn't sound good on my Klipsch RF-7 speakers or my 4 subs. Note that 14/2 and 12/2 wire will actually have 3 wires inside: a black, white, and ground wire. 4 gauge versus 2 gauge) is negligible compared to the cost of having to run a second or larger wire in the future. exceeding ⅛ h. Unfortunately it looks like this particular subwoofer does not have "line level" ouput connections. Wires from each set of input jacks will then connect i wired 2 orion 1200D's to my XXX 12, it was kinda complicated. Attached is the wiring diagram for a '15 with the premium sound system. 4 arrangement. Two sub-panels also reduce light dimming. The signal is passed through. two amps to power one sub? - Im new to car audio and my question is how do you wire two amps to power one sub. There is room on the panel to add two more circuits. In general one sub is sufficient even in a stereo setup, as bass is hard to localize and you can get better quality for the same outlay buying one sub rather than two. Moved into a new house and got a new receiver and four new subwoofers. Ampacities of insulated conductors; 14 (2. The neutral wire connects to the silver-colored lug along the side of the breaker. Connect 12-Gauge Speaker Wire from the Positive (+) Speaker Output on the Master amp to the Positive Terminal on the Subwoofer (+). Of course, if you have unlimited budget One channel of one amp would power the highs on one speaker, and the other channel of that amp would power the lows on the same speaker. The Physics Behind It. If your preamp has left and right outputs but there’s only one on the sub, use a Y combiner adapter. I wonder if some systems would benefit more from the reduced low frequency “work” placed on the main amp and speakers than the benefit of the matched amplifier output to sub and main speakers. Aug 19, 2012 · I have a Dual XPE2700 400 Watt 2-channel amplifier, and am currently running two 6x9 polk audio 125 watt rms and 300 watt max speakers. If i connect both amps at the same time will this affect any of the equipment ? I would bever intentionally use both amps at the same time, although they could be switched on at the same time accidentlly. I do exactly that in my pickup - power a pair of separates in the front with 2 of the channels and bridge the other two to power a sub. Like I said, the head unit only has 2 RCA outputs, now connected to front/rear speakers. With nothing but the fluorescent lighting on, I pull about 2. 12-3 wg: 20 amps max, switch circuits and (rarely) 240 volt 20 amp equipment: 12-2 wg: 20 amps max, branch circuits, kitchen receptacles, and other 120 volt 20 amp small appliance circuits: 10-2 wg: 30 amps max, Water heaters, AC units, and (rarely) other straight 240 volt 30 amp Nov 18, 2003 · There is the obvious things, like making sure the panel is rated for the amps feeding it, making sure the breakers all have the same short circuit rating, but if you have a main disconnect on the outside of house, and a main 200 amp breaker in the panel, is there a problem with a panel having three 100 amp main breakers and a 60? In the wire size table below give the typical diameter of #14 copper wire as 2. Both amps will always be in standby mode but the sub is switched on direct from the mains by remote and is not 'auto triggered'. Some amplifiers provide a choice of more than one input and output connection. 100 amp main, 100 amp service wire, 200 amp sub panel? [ 2 Answers ] I am moving my sub panel and upgrading to a 200 amp service, but in phases. With this setup you will have one amplifier manage the woofer of your sound system and the other amplifier manage the mid and tweeter range. Today's AVRs feature 7. 75V of 5. What I understand your saying is to run the speaker wire from the amp to the sub first. The most common and best way is to connect them in parallel. The price difference between two wire gauges (i. If the Snell E4 are set up with 2 pair of inputs on each with a connection between the 2 red and 2 black terminals then you would remove that connection and hook up the bass amp to the woofer +/- and the treble amp to the tweeter +/-. Matching Subwoofers & Amplifiers Free Delivery by Sat, Jan. Mar 21, 2014 · Multi-Conductor #3 gauge THHN Copper Wire; Rated for direct burial – no need for conduit – Click here for pricing on #2/3C with ground Tray Cable (THHN-PVC) ALUMINUM 1. If it has one, there will be a bridging switch to enable it. 2, 9. #2- 95 amps (can be protected at 100 amps) If you elect to use cable, it will need to be protected from damage if it emerges from the ground on the exterior side of a building. 3) 20: 15: 20: 15: 10 (5. Two amplifiers, each rated 100 watts maximum for an impedance of 4 Ω (four Ohms); in bridge mode they will appear as a mono amp, rated 200 watts into 8 Ohms. The sub will blow. e. This is achieved by hooking up the negative wire from the amp to all the negative connections of the speakers, and the positive to all the positive connections of the speakers. #4 and #5 go to the hot side of the 100 amp breaker in the sub-panel, and #6 goes to the neutral lug in the sub-panel. The subwoofer combines the channels inside. Each single-pole breaker connects to one of the two hot bus bars. The image below shows two subwoofer outputs. (positives from both subs to positive amp) ,(negative of each sub to negative of amp) Usually, 18 gauge wire is sufficient, except for high power (subwoofer) applications. So say you have a D1 woofer, you would wire it in series to get it to 2ohm. #8 50 amp feeders, SUB services to outbuildings in conduit #6 60 amp feeders SUB services to outbuildings in conduit #4 70 amp feeders, neutral conductor for 100 amp services neutral conductor for 100 amp service THHN/THW Wire #2 main conductors for 100 amp service #14-2 w/gnd garden, walkway and post lamp lighting circuits Since there are two sets of these, when they are then wired in parallel to each other, each pair is reduced in half as if they were one speaker, just like regular parallel wiring. Would you be better off with one great amp or two lesser amps for the same investment? Our advice is to get the one better amp and bi-wire. The colors of the two cables will be different to make sure you connect them to the right jacks. I am assuming that the factory installed 200-amp breaker is servicing the included distribution bus and therefore is not good for supplying one of the two 200-amp panels inside the basement. KISS at work. g. It is important to pick the correct size of wire so that the wire doesn't overheat. 5 = 250. Then, you connect the positive from that first subwoofer to the positive of the next subwoofer. Single Conductor #2 gauge Aluminum Wire; Needs to be buried in a conduit – Click here for pricing on #2 gauge Aluminum wire. I inspected a home today that was built in 1974. In a bridgeable amplifier, at least one amplifier will have an inverting switch to run that amplifier out of The bi-wire connection separates the woofer from the combined midrange and tweeter section. One is wired to the speaker. This causes a loud hum in your speakers. HP816P400BS ). All the 2nd reciever is doing is acting as the amp like on a powered sub. Not complicated. That is, as an example, the lug in sub panel can handle #1-4 wire, whereas you may need bring in a 1/0 wire due to the fact you have a long run. DC amps to watts calculation. Unless you trim the wire down two 8 gauge are not going to fit in one terminal (if you want to parallel the coils at the sub). I’m going to be using a maximum of about 30 amps of power at the sub panel. Takes a set of T2652-s components in the front on a T400-2 amp to keep up with the bass. A series wiring scheme ties the speakers together in one circuit so that the speakers are forced to Head Unit, 1 Amp and 4 Speakers (2 subs on amp) Head Unit, 2 Amps and 4 Speakers (2 subs on one amp) Head Unit, External Crossover, 2 Amps and 4 Speakers Head Unit, External Crossover, 3 Amps and 4 Speakers Start of 4 Channel Amplifier Section Basics of 4 Channel Amplifier Basic System with a 4 channel Amplifier But mono amps with 4 leads like this (pos/neg & pos/neg) are still only one channel amps. Feb 19, 2004 · Two options that I can think of if you need the 150 amps. Interface one side of the speaker wire to the rear part of one speaker, and then join that speaker to a further speaker in the queue. Oct 10, 2013 · The speaker wiring gauge. That means you need heavy-gauge wire to prevent overheating. I would prefer to be able to get 2 amps where I can run it at 1 ohm but im not sure how to wire an amp to each coil and it be 1 ohm. Connect the speaker wire to the speaker outputs on the amplifier 2. Just wanted to be clear When wiring electrical devices yourself, it is extremely important to use the proper size wire for the amount of current that the device will draw. Some panels have only one long bar. And, the 80 amp sub panel is feeding a 40 amp sub panel. A typical amp can handle 2-Ohms while the newer, Class-D amps can handle 1-ohm! Do not associate Ohms with sound quality. Make Sure Your Sub Has a High-Level Input Option This is almost a rare case in the subwoofers of today’s market. Put florescent lights up not many amps for a whole bunch of them . Make sure both the subwoofer and the amplifier are turned off and disconnected from the power source. Take responsibility for powering the front-left and front-right speakers away from it, though, and it can use those two ‘spare’ amplifiers to add two further Atmos speakers in a 7. The amp would run two speakers (or 4 in the a+b mode). The total power is 120W and at 13. The amp pushes 2000 watts RMS @ 4 ohm when bridged, the sub can only handle 1000 watts. Aug 30, 2018 · When you wire a 60-amp breaker, you need 3-conductor wire, either 6-gauge or 4-gauge. If its not designed for bridging, you can run into all kinds of problems. Use a distribution block to split the power wire coming off the battery, run a remote wire to the first amp then off that same terminal on the first amp, bridge another wire to the next amp. Check the amplifier's owners manual for minimum impedance the amplifier will handle before hooking up the speakers. Sep 11, 2020 · If you have a home theater receiver that only has one subwoofer preamp output (sometimes labeled Pre-Out, Sub Out, LFE, or Subwoofer Out), use an RCA Y-Adapter to send two parallel low-frequency audio signals to two separate subwoofers. Connect your remote wire to a 12v switched source that only powers when the car is running and run that down with your other wires to your amp and connect that to the remote wire input on your amp. (E. But I thought to warn you about one property of them. Hence the outputs could NOT be bridged. It's not that hard really. Let’s look at another example using the same RD500/1 amplifier in a more aggressive listening situation… ((500 x . ) #1 MTX Terminator TNE212D 1200 Watt Dual 12” Subwoofers+Sealed Sub Box+Amp+Wire Kit. and as for rca's i just ran a short rca from the pass What you are looking for is a distribution block. You'll then need to connect your amplifier to your speakers. 7A. Non-standard wiring may be slightly different from model to model. 9. In short 110 volt-wise: a 200 amp service is feeding an 80 amp sub panel. Connect your ground wire to a chassis ground in vehicle free of paint. Your subwoofer may be either a Single Voice Coil or a Dual Voice Coil (popular for car audio systems) woofer. You can but your still only going to get 100 amps total between the two panels. Two of these subwoofers would mean you need 800 watts of power at to the total circuit impedance. (With one sub) If the mono blocks are together then I suppose that one hot would go to the hot on one amp and the other hot to the hot on the other amp and the ground to the ground terminal or chassis ground on either amp. I usually use ch. If each speaker has an impedance of 8 ohms or more, then you can generally connect them in parallel. Thats a 4-channel amp to get an article about, etc. www. First - purchase 2 Sonos amps, 1 for each pair of wired speakers - but paying $1000 for these 2 pairs of wired speakers seems ridiculous when I could buy 2 Play 1's or 3's (1 for each of the 2 areas mentioned) and spend much less. In conventional setups, you only use one cable to connect the amp to the speakers. The sub will suck nearly no current from the signal (so your mains will still get almost all the juice), expensive subs have nice crossovers you can use in this configuration. This amount is typically the same as the joint power of both stations at half the load. I. If we wire 2 speakers of 4-ohm in series, it puts a load of 8 ohms on the head unit. Wire the speakers as per the instructions. I fed this sub panel with #10 UF cable. For 2 conductors (such as are used for 120 volt equipment) the voltage drop would be twice the values given by the calculator. The ground and neutral wires attach to their respective terminals, and one hot wire connects to each bus bar. You can wire two amplifiers, or even multiple amps, in one car audio system, but it takes some extra planning. each amp had 2 negs and 2 pos terminals. Having one 30-amp and five 20-amp circuits (130 amps total) in an 80-amp subpanel is common. Me if I had the room I would snap me in a 100 amp breaker and run #4 USE or larger wire to a sub panel in the shop . The National Electrical Code (NEC) does not permit having two wires connected to any individual breaker (with one exception). 7 amps of current with a measured voltage of 125 volts on this feed. The 220-240-volt circuits may have two hot wires alone or a third, neutral wire may be added. Jun 05, 2010 · Install 30 amp double pole in basement sub panel using the black and white wires as the two hots. Jul 03, 2008 · You can use a splitter cable that has one RCA jack on one end and two RCA jacks on the other. Apr 24, 2020 · The Yamaha RX-A3080, for example, has nine built-in amplifiers (plus two subwoofer outputs), which you can deploy in a maximum 7. There are 8 speaker wires feeding the sub on a late model JK but without the amp the speaker wires are dead. Remember: 4 Ohm mono is equivalent to 2 Ohm stereo. Conversely, when a magnetic field is passed through a wire, an electrical current is Separate the wires and strip 1/2-inch of insulation from the ends of the insulated wires with a wire stripper. If your radio does have a power antenna wire, it will be blue. My receiver (Sony ES STR-ZA5000ES) has two subwoofer outputs but it only measures one of them. The switch is gone, just left with 2 input jacks. I have 100 amp feeder wire going to it (AL 2/2/2). In the picture below, one channel is shown. Some amps have them built in, mostly car stereo amps. Unless stated differently, this amp will be shaky under two ohms stereo or 4 ohms mono bridged. Sep 29, 2018 · A single voice coil sub won’t work with the two amps and will result in the outputs being fried as soon as you turn it on. Now wire all those pos and Sep 21, 2020 · – Connect the rear channel RCAs from the Sony to the amp front or rear channels just as you mentioned. Connect each of the hot wires on the cable to one of the lugs on the breaker and snap the breaker into an available slot on the panel. If the heater has an electrical rating over ⅛ h. It has one service panel with a 225 AMP breaker and 3 sub panels fed from the main with a 100 AMP, a 125 AMP and a 150 AMP breaker. You simply need to be aware of them: Receiver or Amplifier Power Output. When you run an interconnect between them, they each 'see' each others zero-volt reference. 5V as calculated above) If you have a late model JK then the wiring for the sub is already there and, as you don't have a sub, you most likely don't have an amp either. Use our matching tool to find the amp that will efficiently power your subs. The only thing about single channel amps is the wiring gets tricky if you want to put more than a single sub. Do not install a breaker that is too large for the wire. One cable is for the bass, and the other one is for the tweeter. Different wires will have different line capacitances, which can cause the wire to act as a low pass filter. It carries more, but unless the local codes say otherwise, you can use this on a 20 amp single pole breaker to feed them safely. 99 $ 12 . You may be temped to use typical electrical wire instead of speaker wire to save money. 2) Classic Instruments’ Amp gauge should only be used on vehicles with alternators rated at 60 Amps or less. The only thi You could connect a speaker to each channel. Connect the single RCA adapter cable to the subwoofer pre-out or LFE channel of the AV receiver and to the input on the SoundPath Wireless Audio Adapter transmitter. Let’s see how to do it. If you have a aftermarket unit then get a wiring harness, the run RCAs to your amps, then speaker wire to your sub. I am looking at getting a DVC sub for my GF's car, and am looking at a dual 4 ohm sub. Any long lengths of wire over 100-feet can experience amperage loss. Amp turn on . RMS power handling of a 55 series 12” dual 2 ohm voice coil subwoofer is 400 watts. Wiring two speakers in parallel halves the impedance of one speaker. OR Connect the Transmitter to a 2-channel stereo pre-amp. 092 inches. Helpful. Run speaker wire in exactly the same way from the back of the second amplifier into input B. Besides, a mono amp (single pair of terminals) is ridiculusly stronger than a 2 channel amp. Nov 11, 2019 · Wiring in one amplifier can be complicated enough, especially when you're dealing with a factory car stereo, and the situation just gets more complex when you add multiple amplifiers to the equation. 4. Mar 21, 2011 · The tube amp does not provide power for the subwoofer. Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. (sometimes this wire is black with a red stripe on it) Black Wire: Remove 1/2" of the wire insulation from the black feeder wire and attach it to the remaining lug on the new circuit breaker. Connect a speaker wire to each speaker 2. For reasons which I will not bore you with I only have one speaker. This is what it looks like on the outside. This panel has 3 short bus bars for neutral wire connections. Best to bridge amplifers that are specifically designed for it. For all residential wiring the wiring has to be a MINIMUM OF 12 GAUGE THICKNESS (remember, smaller numbers means thicker wire). In a 4. Many people find this page when searching for wire current carrying capacity for AC circuits. How do I wire the speakers and tweeters to the amp? Heres a pic of the connections on the amp. There's nothing "better" about 8 ohm vs. This wire typically is marked with white phasing tape to signify that it is the neutral wire. A bi-wire compatible speaker has 4 binding post terminals. Two channel amplifiers work well with sub woofer enclosures, as many will have two speakers located in each box. Meanwhile, bi-wiring is a method that connects the amplifier to your speakers. Find your amp needs guidelines To determine how much capacity your shop needs, first find your highest amp-draw tool (often a tablesaw or dust collector), and multiply the amperage by 125 percent Me if I had the room I would snap me in a 100 amp breaker and run #4 USE or larger wire to a sub panel in the shop . My dad got them off eBay NIB (new in box) but they're over the return policy limit of days, so I can't return them and would like to wire up my Single Voice Coil Wiring Options. Note that you will first need to remove the conductive metal jumper strips connecting the Monitor 40 speaker’s dual-input terminals for the bi-wiring to provide RCA Speaker Wire, Speaker Bare Cable to RCA Plug, Gold Plated RCA Connector High Level Audio Cable Open End for Amplifiers and Subwoofer - DIY, 2 M 4. Apr 06, 2011 · 2: run each amp together on the same 1/0 wire and use a distributor block to run them together. I can tell you, R. If you have an amplifier wired to a single-voice-coil (SVC) subwoofer, there is only one wiring method, so the SVC impedance is what the amplifier must match. Most often you accomplish this by connecting the positive wire from the subwoofer to the positive lead of one channel on the amp and then connecting the negative wire to the If your subwoofer permits, you may be able use a splitter cable to connect the L+R ports on a subwoofer to a subwoofer-out port on you AV Receiver (see Fig. I ordered a new set of speakers and tweeters last night along with a small amp to power them. In coming ground from 200 amp is connected to this bonded ground bus bar. Since you are dealing with individual speakers, you must wire them in series to get the desired results. 95. 5 ohm, an impedence that many amps won't handle). This is the most commonly misunderstood mode of operation and it requires additional circuitry to implement if the pair of amplifiers does not have the facility built in. 99 Apr 25, 2004 · Yes, two (easy) ways to hookup a powered sub in a 2-channel setup. Like 2 bullies on the playground - they start to fight. No loads on sub panel. The power P in watts (W) is equal to the power factor PF times the phase current I in amps (A), times the RMS voltage V in volts (V): P (W) = PF × I (A About That Power. A Volt gauge . I will need to have a little less than 50 feet of 220 volt 4 wire service (two line, one neutral, one ground) run through my unfinished basement to get to my deck where I will have the panel installed. Aug 27, 2020 · It depends upon the impedance and you can connect as many speakers as you want just by knowing the impedance of the speakers you want to connect and the maximum/minimum impedance of the amplifier you are going to connect There are two methods avai When wiring electrical devices yourself, it is extremely important to use the proper size wire for the amount of current that the device will draw. how to wire two amps to one sub

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