I have a sub I will run, and amp, but need to know if they will work good with each other. The sub is rated 1200 RMS with 2ohm DVC's, and the amp is rated 1600 watts RMS @ 2ohms (only a mono amp)...and 800 rms at 4ohms...it cant do one ohm ...which is the problem. I can wire at 4...but donno if it will work right...and be powered fully...I always use low ohm amounts...never tried anything above 2...whats your guys thoughts?

will there be a difference between running at 4ohm vs 2ohm...sound wise...and will it still be able to push the sub...since power is halved for every ohm doubling...is the same rule for subs too...thus making the sub 600 rms @4ohm?

 

I would hook the 2 voice coils up in series making it 4ohm mono. 800 watts should be plenty to drive the speaker.

What brand of amp it is? I have heard of people running the amps at 1 ohm with them being stable. But unless it is a top notch quality amp, I wouldn't suggest it. Running the amp at 4ohm is your safest bet to not risk overheating and unwanted distortion.

 

it will be an audiobahn amp...i know...some people hark on them...and say they arent real rated power, but i've had three...and they all have outlasted and out worked the other brands ive used...power acoustic, ma, sony, rf, alot of others...

Ive just never run anything at 4 ohms and didnt know if it'd make a sq difffernce, or if it would hit hard being a higher resistance...i have no idea...

 

Most of the systems I have had in the past have ran at 4ohm. It is the standard for car audio and almost all of the equipment manufactured is designed to run at that impedance. It will pound for sure. Give it a shot, I'm sure you will be satisfied with the results.

 

sounds good...does anyone know what the impedence of the RE XXX is? I think its one ohm per VC...so would that mean I could run it at .5 and 2 ohms?

 

use an ohm meter and measure the resistance between the pos and neg sides, that will give you the actual measure the speaker is running at. if it is a dvc sub then it depends on how you run the wiring, each side individualy, both in series, you can likely run it ( assuming it is a dvc ) at 8, 4, or 2 ohms.

 

ok...one last thing...

Is the power RMS rule of thumb about the same with subs as it is with amps...as in if a sub is 1200watts @ 2ohms...it'd be about 600 @ 4 and so on? I'm tryin to figure out howmuch power to run to it...

 

The RE XXX is available in a DVC 1 ohm format, and that is correct, you would either run it at .5ohm parallel mono or 2ohm series mono. You should be able to run one of those at 2ohm off your Audiobahn. (kickbutt speaker by the way)

 

I don't believe that applies to a speaker. If you have 2 1000 watt 4 ohm voice coils and parallel them to run at 2 ohms, the amp will see 2 ohm impedance, but you still have 2 1000 watt voice coils. In my opinion you would still have a speaker rated at 1000 watts no matter how you hooked it up.

 

awesome...thanks alot...ive always wondered about that...because speakers are just rated in RMS...its no particular ohms...yet amps are rated based on ohms...so ive always wondered if 1600 @2ohms would be comparable to running only 800 @4...

Would 1600rms @ 2ohms be enough then, for a single RE XXX? I think they're rated at 1600, but Im not sure anymore..their website is not updated much, and i know they have out the new model. Anyone know the difference between the old xxx and the new 06 one?

 

running a sub at 4 ohms is also good for the amp to, it wont make it work as hard as it would at 1 ohm or 1/2 ohm.