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New Pass Labs X.5 series versus previous X series

Pass Labs is in the process of re-dedesigning their entire X series into the new X.5 series. As of this writing X150.5, X250.5 and possibly X350.5 are already shipping. The X600.5 are expected to start shipping early in the new year. This thread is to discuss experiences with the new amps, their sound signature, perceivable improvements over the old series, and of course dissenting opinions. Everyone's perspective is welcome--X and X.5 owners, X.5 window shoppers, Dealers, and all other audiogoners with a passion for affect by the bug of audiophilia.
guidocorona
Ag insider logo xs@2x
ivanj
35 posts
 
Anyone compare the Pass Aleph 2, X 350.5, and XA 160s?

I own latest update Soundlab U-1s with the benign impedence transformer upgrade and the latest PX panels, both of which, BTW, I recommend to any SoundLabs owner - you may contact me for details.

But, back to your opinions of the amps in this situation - driving Soundlab panel speakers or other electrostatics - they don't have to be U-1s.
gregger
36 posts
 
The.5 designation is deceveing. It could have been a totally new model with the great degree of improvement. G
hocklinkwan5ef7
2 posts
 
Hi there, I am considering the X350.5 against the X600.5 and would like to know if you have any views / experience on comparing the virtues of both these great amps?
guidocorona OP
4,298 posts
 
hocklin, I suspect you may find the old X600 to have greater authority and to be slightly leaner, while the newer X350.5 to have greater refinement, delicacy and control.
guidocorona OP
4,298 posts
 
Apologies to all. . . I corrected my previous post. I meant to say that the x600 was likely to be found a little leaner, not the 'x600.5'. Clearly a 'ooops!'
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