what sort of SQ loss do you expect from these two impendance loads?

namely with subs .. or is it completely negligible.

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TEAM FREE-AIR

It really is a damping factor issue, being half at half the load. Damping factor is good.

Having said that, a good amp is likely to have sufficient damping at 2 ohms compared to 4 that you will really struggle to tell any difference. eg damping of 125 vs 250....125 is plenty for good cone control.

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Mazda SP20 - NOT yellow,Dynamat Extreme and G Spot in front doors
HU - Alpine CDA-7876RB
Audison VRx 2.150EX front stage amp
JL Audio 500/1 Class D monoblock sub amp
Front Stage - Morel HCW 6.5 woofers, Morel MT2 tweeters, Morel MX2.2 x-overs.
Rear fill - stockies with power from HU (not that they get any)
Sub - Kicker S12L72 in 75 litre 30Hz slot-ported display box.
Stinger cables and connectors etc
TEAM AUDISON SQ WITH ATTITUDE

if the amp is designed for with a 2 ohm load capability, then there won't be a SQ difference

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