Did you compare the 370 and 372 amp sections to the 216? In other words bypass the preamp section Having said that I did pick up a 216 and based on the 370 and 372 I had I think it is better FYI The 216 power amp is 7lbs more then the 270 or 272. Also I have a 317 that does work but has issues It is the 214 power amp. In comparing the 214 to the 216 the 214 and a cleaner more sharply focused the sound The 216 is more thich and almost tube like in dimension. The beatup 2400 I picked ups sounds more transpatrent but not as refinned as either of the other two. I do not have a 2600A but would guess it is smoother and more full
See my question on preamps
See my question on preamps