[GSteg]

why? because there are no specs that categorizes amps. does the amount of power it puts out put it as an SPL or SQ amp? does the octave of the crossover make it an SPL or SQ amp? or what about the class amplification?

same with subwoofers. no specs that shows if its an "SQ", "SPL", or "SQL" driver. subwoofers all do the same thing. displaces air. thats their function. some have less distortion than others while having more inductance. some has high distortion but low inductance. hell..one can have high a flat KMS curve while having such a parabolic BL curve (idmax). or it can be the exact opposite. and nothing a T/S parameter will show how the sub will perform or what it really does.

and before anyone says "its a SQ driver because i heard it and it sounds good". sounding good in subjective while Sound Quality is objective. big difference. tonality, distortion, etc makes up Sound quality. a friend of mine might think the MTX 4000 is the best sounding woofer to him, but that doesn't mean its a SQ driver. it shows that he prefers the distortion that the MTX sub puts out. not everyone likes accurate bass. some likes the overhang sound while others like underhung.

which leads me to definition. define SQ and SPL. what makes a subwoofer a SQ driver as opposed to "SPL"?

bottom line: no such thing as SQ or SPL sub. its also saying which car is quick. does it have to run under a certain amount of time on the 1/4th to qualify as a fast car? or does it have to run under X time on a racing track? what if it qualifies under the 1/4th but fails on the track? is it still a fast car?

one can drive in a porsche 911 turbo and then drive an Acura TL type S and say "damn this car is slow!". or a person can go from a Toyota Corolla to an Acura TL type S and say "holy shiz this car is fast!!"

some cars are faster than others, just like how some subwoofers have less distortion than others.