Car Audio Subs For Sale

I have 2 12" subwoofers at 400 rms each. If I got a 2 channel amp will it need to have 400w at each channel?

AMP:
Force Series 2-Channel Class AB Car Amplifier
Power Rating:
4 ohms: 400 watts x 2 chan.
Max Power output: 1100 watts x 2 chan.
Wired remote bass level control included
LED power and protection indicators
Tuned Bass EQ (0-18 dB bass boost)
Variable input gain control
Thermal, overload and speaker short protection circuitry
Damping factor: 125+
Chrome-plated RCA level inputs
Chrome-plated screw terminals
Fixed high-pass filter (200 Hz)
Variable low-pass filter (40-150 Hz)
Frequency response: 9-50000 Hz

A few issues you will face and how to resolve them:

1) You have 2 DVC 4Ohm speakers, meaning there are several ways to wire them, and wiring them the wrong way will either not give you the power you need, or it will blow your amp.

2) Your amp is a dual channel AB amp, so it will run hot. The way you will need to wire your subs will run the amp VERY hot, so make sure it is well ventilated, and don't be surprised if it shuts off after a few minutes of playing.

The amp is capable of powering the subs with enough force, but at the wrong Ohm load. You can wire the subs to 8ohms on each channel, which will make the amp push 200w per sub, you can wire the subs to 2ohms per channel, which will make the amp push 750w per sub, or you can wire the subs together, runing each pair of Voice Coils on the subs in parrallel to 2ohms, and then wiring the subs in series, to make a 4ohm load on the amp. You will then run the amp in bridged mode, at 4 ohms, and your amp should put out 800w rms total, meaning 400w rms per sub.

*Note: Before you attempt, make sure your amp is Bridgeable, it will say it somewhere on the paperwork if it is*

How this is done:

There should be 4 terminals on your subs. 2 black and 2 red. On each sub, run wire from the black terminal to the other black terminal, and from the red terminal to the other red terminal on each sub. Now is where it gets tricky. You will then run on wire ffrom each color (one black, and on red) to the terminals on the back of the box.

Now, on the back of the box, you should run wire from the red of one terminal, to the black of the opposite terminal. This will leave one open black terminal, and one open red terminal. Once this is done, look at your amp. There should be symbols showing which terminals to connect to run in bridged mode (usually the outisde terminals on each end). Simply run the remaining two terminals to the bridgeable termianls. Black to negative, red to positive, and you're done

*I tried my best to explain it, but let me know if it is a little confusing*

**Force is a cheaper brand, and the amplifiers do have an issue with heat, especially at lower ohm loads. I have worked with Force amps before and like I stated before, if you set the gain (using a MM) to supply the correct amount of power, the thermal switch will get blown very quickly.**

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