Heya,

Not sure how much difference it makes, but is t better to run a woofer at 4 or 8 ohms for SQ?

I remeber reading somewhere that if you can run your woofer at 8 ohms, you will get better SQ from it (I forget the technical reasons behind it, but I do remeber there was some logic).

I have the ability to run my 4 ohm DVC sub at 8ohms, as my amp can support it (and give it the same wattage as running 2 or 4 ohms).

ANy replies are appreciated,

Cheers

Search, and yeh shalst find-eth.

http://www.mobileelectronics.com.au/forums...howtopic=539555

thanks,

you could have just said "yes" and saved yourself some time

But then you wouldn't have learn t anything, which is useless.

"Fish for the man, and he'll eat for the day. Teach the man to fish, and he'll eat for a lifetime"

for sure dude, I meant it in jest.

Thanks for the link

going for 8ohm, instead of 4 ohm, or 2 ohm, will affect the damping factor of amp and so *in theory* may impact SQ.

In reality using 2 ohm, with any half *decent* amp, and by half decent, I mean known for SQ amp, not some name brand mass produced amp...anyway I digress. real worldm you can run 2 ohm and get decent sq...I am.

its a case of theory and diminidhing returns. ideal world we would all run 16 ohm load and have Kw of power but in fact you can run 2 ohm with todays amps, and even 15 yo amps, and have no decrease in SQ.

forget the specs baby, and just listen to watt is what lol
peace
cyberpunky

Yeh, we're talking 1% here.

Either way, Power Compression has a much larger effect then system settling response (or what you've referred to as 'damping factor') and its something almost everyone who turns the dial will have problems with. Lower impedance = more heat = non-linearity = distortion = bad.

Whether you can notably hear it or not, I cant say. But when its not there, its noticeable.

cool, thanks for that.

i only ask as I have a 4ohm DVC, so can either run it at 2 or 8 ohms.
I also have a PG x200.4, that can push out the same power at 2ohm, 4ohm and 8ohm. So its really just a wiring change. I will try 8 ohm and then 2 ohm and see if I can hear the difference.

thanks for the replies though,

cya

if you had the choice i would use the higher impedence setup on your amp. 8ohms would be the way to go since you have a much higher voltage rail.As the impedence is lowered aka 4ohm or 2ohm sub the voltage rails on the amp are lowered. The amp will run a little cooler and should make similar power however it should have slightly better specs. Can you hear the difference..im not sure since we can tolerate quite high distortion in bass and sub bass compared to midrange units and tweeters.

but anyway if you have a dual voice coil sub try the higher impendence and the lower impedence...see what you prefer.