Is the Pass Labs X350.5 and X1 "warm"?

The X-1 preamp is not a warm sounding preamp, very neutral. The X-250 that I owned was to the warm side of the midway point but nothing like tube warmth.

Hope this helps.

Thoooe,

I just sold my Pass set up because of a move to a much smaller room until I get a dedicated room built. The X350.5 is a great amp. It has the sonic characteristics you are looking for. I mated mine with Thiel CS 2.4 and Thiel CS 7.2, which are revealing speakers, and it was a great combo.
As far as the Pass X1 is concerned that depends on what you are looking for. It is a good pre amp which is on the shady side of neutral.I do not know if balanced is a priority to you or not. However, I would also encourage you to audition some tube pre amps which work well with revealing speakers.

Tboooe, yes, the 350.5 has a overall sonic signature that could be called "warm" or "musical" yet still has great details/dynamics/extension.

I believe you asked this question before, the .5-series is a vast improvement over the first generation X-series amps, that were "cooler" sounding.

The .5 amps add some of the Aleph/XA series "sweet/warmth" to the overall sonics. The 350.5 is a great piece and one of the better single chassis amps out there today.

Thanks for the responses. Teajay, do you have any experience with Pass preamps?