Just reading the ampeg advertising for their 8*10s, and they are saying that 10s react far quicker to transients than 12s and 15s. Is there really any logic to this or is it just more advertising woo... A 15in engine and cone is quite capable of reacting fast enough to deliver 1.5khz or higher signal, what transients can possibly require the speaker to respond any faster than that? And what do they really mean by transients anyway? Surely all the speaker knows is its getting a wave form which it does its best to respond to? Yeah sure by their nature 10s are delivering a few khz higher than a 15, at least on axis, but what has that to do with transients?