How should i run my wires dual voice coil 18 inch RE Audio 4 Ohms?

Question

should i run wires from both side of coil and give them both a channel or should i bridge them which would hit harder i have a 2 channel sony xplod amp

Answer 1

here is a chart to help http://www.the12volt.com/caraudio/woofer... you can get impedances of 2 or 8ohms at the amp

the lower the final impedance at the amp the easier/cheaper it is to power but the lower the sound quality- i would go with 2ohms

you need to match the RMS wattage of the speakers to the amps RMS wattage at the specific impedance (ohms) that you are going with

a sub that needs 200 watts RMS @ 4ohms will be VERY underpowered with an amp sending it 200watts RMS @ 2ohms

If you send too much power to your sub, you risk damaging it. The cone of the speaker and the mechanical parts that make it move may break under the stress. Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering.

When the volume is turned up and the amp doesn't have enough power, the signal becomes distorted, or "clipped." This distorted signal can cause parts of the speaker to overheat, warp and melt. Not good!

You don't have to match speaker and amp wattages exactly. An amp with a higher output than the speaker's rating won't necessarily damage the speaker — just turn the amp down a bit if you hear distortion from the sub and don't run the speaker at extremely loud volumes for lengthy periods. Likewise, you'll be OK with a lower powered amp if you keep the volume down and don't feed a distorted signal to the sub.

Answer 2

The Sony amp is 2 ohm stable, so you if you have 2 of the speakers you would want to wire them series/parallel.  This will give you a 2 ohm load on your amplifier if you bridge it mono.  If you only have one speaker you will unfortunately have to run them in series, which will create a 4 ohm load on your amplifier if you bridge it mono.  This will result in you cutting your amplifiers potential power almost in half.