Just wondering, I noticed with the 4B-NRB amp that I have pin 3 is possitive and that the 4B-ST amps and I assume the SST amps that pin 2 is possitive in the balanced connection. Why the change?
PS: I also own a BP-4 pre-amp , if I were to relocate the power transformer from the chassis of the preamp into a seperate chassis of its own, would I achieve close to BP-20 results? Just curious.
Thanks.