The X.5 amps do the same thing in stand by mode. The stand by mode on all pass amps keep the caps charged and the driver input board on. When fully engaged it they simply turn on the output transistors.
XA 30.5 or mod S/500?
I've been watching the 'Gon fruitlessly for some time to get a Threshold S/500, "late Series II w/Optical Bias" (per Jon Soderberg, this is what he needs in order to do his modification to produce a Class A one-chassis SA/1 "clone" [my word, not his]). I'm beginning to wonder if a Pass XA 30.5 might not be equivalent or better sounding; I know they're easier to find. Unless I get lucky and find an already-Soderberg-ed S/500, the cost of amp and mod might even be approaching the price of a used XA 30.5(?). Either amp will be used with a FET 9 preamp. Speakers are currently Vandersteen 2CEs, but contemplating future purchase of 3A Sigs, or Maggie 3.6s, and a REL sub. Anyone heard SA/1s AND heard XA 30.5? Thanks.
- ...
- 12 posts total
- 12 posts total