great forum and i hope to learn a lot. My name is Jerry and I have gotten back into 2 channel HiFI after a long hiatus. Long Story short, i picked up a Dynaco ST-70 and a PAS 3 a couple of weeks ago and know nothing about them really, however, I am pretty thrilled with the sound. I do not have fancy stuff and i was running a Pioneer sx-750 with a pair of KG-4's that I have had forever. Sensitive Speakers and I like them however, they could get fatiguing with the SX-750 and those Horns. My local record store friend sold me the Dynaco stuff very inexpensively because he said they worked but that was about it. Now that being said, here are some dumb questions, the biasing sockets on the front of the amp have been removed, does that mean that inside the amp is a self biasing board ? It sounds good, the balance is nice and tone also, everything on the pass 3 is set to neutral and frankly aren't needed at all. I have just bought a quad of gold lion KT77's and want to pop them in to see what characteristics change. Is there any problem with doing so, I am a little concerned that I don't understand if the mod on my st -70 presents any danger of taking the perfectly working el 34's out and popping the new tubes right in.
I will say that the amp and pre, rolled off the highs on my KG4s perfectly, my sources are an Akai 201d rtr, a music hall 1.5 and a sonus zp-120, all sources sound great.
I am not a tech, but I am chasing good sound, this stuff is getting me damn close.