How do i hook up two car amps

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Ground Wire

This article has also been viewed , times. Car Radios and Sound Systems.

Have all components, tools ready and checked. This includes drills, drill bits, island keys, and wrenches. But most importantly, make sure you have the correct wires for the job. Gather the necessary materials. Remember that each amp needs a power, a ground, and a REM remote wire going through them. The best way to connect multiple amps when it comes to REM, is through one remote wire. Since the remote wire basically tells the amp when the radio is on, all amps can be connected to the same remote wire.

Best thing to do is for power wire is connect each amp with a separate power using a distribution block, which is essentially a casing that allows one wire to supply power to multiple wires one wire from the battery goes in and three wires can come out. Connect one power wire wire that connects from the battery to the amps to your distribution block.

Your thickest or lowest gauge wire should be your main one. Make sure each amp has its own separate ground.

Wire can burn and melt if too much current is running through it so one wire is your best bet. Know your amps' and sub woofers' limits. This is crucial to achieve perfect precision with 4, 6, and 8 or more sub woofers. An amp that is rated at w RMS Root Mean Square, or the average watt the speaker is intended to receive and play with set for 1 ohm can power two 2-ohm subs rated at w RMS. That same amp can power four 4ohm subs and so forth.

But the more subs an amp is placed on, the less power it can give to each individual sub.

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In fact, you always want the power from the amp to be slightly higher than what the sub s requires; a w amp will work well with a 7 or W RMS sub. Just make sure that the sub's peak power is rated above w. If rated under, make sure your amp's level is not too high as you can damage the sub.

If you have a really powerful amp that's w RMS or higher, then you can really power multiple subs at once without any problem. Connect all subs to the same terminals in the amp. However, depending on whether you wish to connect them in series or parallel or bridge the amp, you may only use two terminals. Refer to your amp's diagram for more specifics. These are also known as "door speakers", "vocal speakers", "6 by 5" or "6 by 9" and more.

If you're trying to install more than what your car originally came with, the same rules should be applied to those of subs. Make sure your 4-channel amp can play them all without being so powerful that they damage the speakers. Because most speakers are rated to 8 ohms, you can generally connect many speaker to one amp without any problems.

Connect all mids and highs with the same power and ground.

All cars have pre-wired powers and grounds that go through the doors and the back dash. It would be foolish to run multiple wires through your door and dash to play multiple speakers with such low wattage.

How do I Wire RCA Cable for Multiple Amps?

Connect all speakers through the adjacent speakers that are pre-wired through the car. Just make sure the power and ground are positioned properly throughout the process. Follow the general rule: Remote and RCA wires are always small. People tend to underestimate the amount and size of wires that they need when installing many components in a car audio systems. If you have the chance of using 6-gauge wires as your power instead of 8, then do so.

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It may save you a lot of time and money. Always use the biggest but most appropriate wire in case you decide to upgrade your sound system. If you previously had a W system, then that 8 gauge wire may work. But if you upgrade to more powerful amps and subs, say w, that 8 gauge will burn and melt in no time at all.

Then you will have to remove it, and rewire the car with 2 gauge wire. If you have a feeling that you may go bigger in the future, chose bigger wire. Multiple Wires can lead to ground noise. People with many components and wires running through their car can easily end up getting "ground noise," which is the whining sound that plays through your speakers and rises and falls with the rev of your engine.

A large power wire can create massive amounts of electromagnetic interference that can be picked up by RCA's of a 4-channel, and subsequently relayed back through the radio and mids and highs as ground noise.

Fix the problem by running the power wire to the left of the driver side seat and placing the amp and RCA's under the passenger seat. Make everything color coded and neat. If power is red wire, ground is black, and remote is blue, then you will have an easier time keeping track of your wires and what they connect to.

Otherwise, if one amp fails, you may find yourself overwhelmed and needlessly tearing out wires. Determine whether you need multiple batteries and capacitors. If you have a w amp playing three w subs, but they really sound weak, then it's time to get more power. Alternatively, play the bass as loud as you can and see if your dome lights dim or not.

This is the way your house is wired, you certainly don't have a seperate fuse for every outlet. Originally posted by Habit: Habit The inline fuses should be based on the wiring you use for the runs, not on the load. However at maximum those amps can draw 85 amps combined, so you want to give them a little headroom in addition to that, which means your power wire needs to be rated for at least this, and probably ish amps for good measure. Your 2 gauge wire will handle this. The amplifiers should also have fuses built-in to themselves, but that isn't something you have to worry about yourself.

The fuses you provide inline are for general protection, but mostly for protection against the insulation of the wire rubbing off and shorting against the frame of the car.

Power Wire

Just a point of clarification here: Pretty much all of the above references to "serial" wiring should have referred to "parallel" wiring instead. Serial refers to the chaining of positive to negative in a circular circuit. Parallel refers to connecting all positive wires together, and all negative wires together. I think you probably knew this, but for some reason the term "serial" keeps getting used. Any valid configuration for your amp is going to be parallel in structure, no matter how you arrange the power distribution. Didn't have that straight in my head.

You have been a most excellent help. I will look at the wire gauge tonight when I'm outta work so I can post a specific. Just a few questions though. How do you know that they can pull 85amps max? And is there some kind of resource that will tell me what gauge wires can handle what Eh so im paranoid, ive had close calls due to carelessness soo im a lot more careful now and thing dont start to smoke and props to qball for explaining exactly what i ment.

Get a fuse slightly larger than that, and you're in business. Habit Sorry to reply twice, but I'm lazy and don't wanna edit. No, it's not an "everyone should know" kind of thing. It's more along the lines of damn near no-one knows. There is a resource - It's called American Wire Gauge. American Wire Gauge is simply a set of standards put forth by who, I forget , that outline what kind of wire you'll be getting when you buy 2 gauge wire at the store. The lower the number, the larger the diamater of the cable, and the less resistance in the cable. Here is a nice chart to help you figure out what size wire you need.

There's plenty more like that one scattered about the web. That's an interesting thought that I didn't think of: It seems like the general rule is that you double the output power to get the load, so the calculations I did before are incorrect, however I believe 2 gauge wire will still do it for you considering that chart.

I think a 2A fuse should be more than enough for a 2GA wire. If you were using something like a 20GA wire, though, you should use a bigger fuse like a 30A!! I posted this as a result of tiredness equivalent to 8 beers. Originally intended as a joke, I fear that this will incite jeering and mockery directed at my person.

Habit Ars Tribunus Militum Registered: Sep 27, Posts: Wed Oct 17, 6:

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