I've just bought a pair JBL 4315, quite surprised that this model is quite rare in any forum and web.
I'm cerently using a tube intergrated amp Nelson Audio Image 66i (KT66) with 40W power and feel that the sound is transperant, detailed, accurate...but to my ear, not sweet and warm enough.
I'm planning to change the amp to a single-end 300B amp 15W or less, but not sure if with such low power can drive well the 4315.
Document said sensitivity of 4315 is 89db only, though I feel this monitor would be more 90db.
Any one out there have experience with 4315 pls help to advise.
Your suggestion on amp matching is very appreciated.