This is just a general question that I've always been curious about. Why did JBL always use 3" voice coils in their most common 12" studio monitor and home audio drivers, and not 4", (the exception being the 4315)? They obviously had the baskets for 12"/4"VC drivers, and it seems to me they would give a lot more control over cone motion than 3". Is there some overriding technical reason that 3" was used more than 4"?
'Just curious - John