reduced sq with lower impedance?

So i've been trying to find out if this really makes a difference or not?  How much noticeable difference would you expect with a 1 ohm load vs. 4 ohms with subwoofers.  I was starting to think it would be substantial from some posts on this site until i read this thread ( http://www.soundsolutionsaudio.com/forum/index.php?showtopic=8218 ) from another site that is usually pretty good.

I am wondering this because right now i have 2 soundsplinter rl-p15's at 1 ohm on a crossfire vr1000d and am curious how much it would affect the sq if I got a different/another amp and ran them at a higher load.

Noticeable difference?  None.  The difference would be detectable in the numbers..  the amplifier would get hotter and the THD would increase a bit.. really any amp would behave this way..  but these are not going to be a listenable, detectable difference with insturments as sloppy as human ears.

I agree completely with that thread you posted.

That sub/amp combo looks *great* ... if I recall crossfire makes some beasty amplifiers and soundsplinter has a good reputation, if a *really stupid* brand name.

You said it yourself,

do have a measurable effect, at least on paper

The "on paper" was in regards to the resistance in the speaker wire..I have not personally done any sq tests with different ga wire..and I would HIGHLY doubt a "by ear" difference in that case..however..you would expect there to be a substantial difference comparing a 4ohm load with a 1 ohm load. (assuming all equipment is within it's safe rating)

http://www.classic-audio.com/marantz/mdampingfactor.html 

This article states that a 10% difference in damping factor is quite noticable. Since I have not conducted any experiments on my own in this area..judging by what I have read on links here..and my own research..I come to this conclusion...  It depends on where you clicked to get the answer..lol

Well put.

Just thinking about it here, I betcha this would depend *heavily* on the actual amplifier in question.. 

Good link I look forward to digesting that.

Richard Clark had quite the thread about damping factor on his forum several years back, and his conclusions were that any damping factor over 20 is inaudible.  I once asked Dan Wiggins what he thought about it and he seemed to agree. 

I'm not liking that Marantz paper linked above.  It does explains damping factor well.  But it seems to skirt around the idea of how damping factor effects "speaker control".  All they describe in their examples is the amplifier being driven to it's limits due to the load.  I don't see anywhere where they explain how the output impedance directly is limiting the output current.