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Pass Labs X350 vs X250.5

I'm considering a pre-owned purchase of either the PASS LABS X350 or X250.5 Stereo Amplifiers, to power a pair of Wilson Audio Sophia2 Speakers, in a relatively large listening room. The costs are close enough, as to not be a factor. I'm leaning towards the X350 (previous model) because it has considerably more overall power (700-wpc vs 500-wpc into 4-ohms), and more than double the amount of desirable Class A Watts (40 pk Watts vs 15 pk Watts) over the current model X250.5

Unfortunately, I can't demo. these Amplifiers side-by-side. Any suggestions would be appreciated.

Thank you!
sunset_ranch

Showing 1 response by gundam91

gundam91
506 posts
 
I got to listen to the X350 and X350.5 side by side at a friend's place before pulling the trigger on the X350.5. (He sold the X350 and kept the X350.5) I still have my Pass Aleph Os that I just love dearly. The original X series (non-.5 series) strayed away from what Pass was famous for and resembled more of a stereotypical SS amp, sterile and cold sounding. The .5 series brought back that midrange magic that the original Aleph amps were known for without any sacrifice in terms of dynamic and bass control of the non-.5 series. We both thought the difference warrant more than just a ".5" designation.

If your Sophia is not power hungry, go with the X250.5, otherwise spring a little bit more dough and go for the X350.5.

FrankC
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