I've never bothered about the science, never had the time, when my ears were still good, but experimented happily using my ears and from what they told me, I'd agree completely with what Shadorne has said, namely the lower the better and even if you cannot --and shouldn't-- hear it,( if you did, it was somehow funny, not right) you could feel it.
Subs & Group Delay
Any opinions as to the value of this spec vs. distortion specs. At any given price it seems that you can choose to optimze one or the other - or maybe compromisse a bit on each. Even the pricey JL 113 can't touch the $600 SVS for distortion at 95db (anechoic), but it shows about half the group delay. I'll try to audition both, but in the meantime, any opinions on the relative merits of these measures would be appreciated.
Marty
Marty