I've owned and still have tons of jbl speakers in my 45 years of using.4430's, 4355's, 4343's, l250's, 250ti's, l300's, l200's l212's and more s8's and theater gear and dozens of other systems than you can shake a chapman stick at. but i just picked these old 4315's (alnico if that matters) and "wow" I don't know if it's my old ears or what? But these speakers sound so very smooth and alive. i'm in a small living room about 10 feet from the speakers and they'e about 7 feet apart from each other. i'm using mac c33 and mac 2255. at low and high levels they sound spectacular. solid controlled lows, mids and highs are well balanced. i can lsten for hours on end and not get listeners fatigue that i got from my horn systems. and even my 250ti's didn't sound as open and clear.
I can almost tell what brand strings the guitar players using. I cut my teeth on jbl horn systems, but sometimes especially with the conical horns 91,92,93 they can sound abrupt and when you attenuate them it seems to put the instrument in the background. But boy! not with the 4315. maybe it's because of the components arranged in such a tight cluster and being all on the same plane and i'm so close? I can listen to music at very low volume and still hear every detail. sorry for the rant, but i'm very excited.
by the way i listen to music like, fourplay, yellowjackets, fourfreshman, take 6, al dimeola, al jarrau, larry carlton lee ritenour. sorry for the spelling and punctuation errors