A review Bound for Sound for Pass Labs fans


I take all reviews with a "grain of salt" perspective. After all, their just someone's hopefully honest and somewhat informed opinion regarding the sonics of that piece in their system. However, I cut Martin G. DeWulf, publisher/reviewer of Bound for Sound, a little more slack then most for at least two reasons. 1) He has no ads so he does not have to "suck up" to any manufacturers for $. 2) He often prints negative reviews, if that's what he hears.

In the most recent Bound for Sound, DeWulf reviews the Pass LabsX-350.5, the first "professional" review that I'm aware of, regarding any of the .5 amps.

He states the following:

1) He thought that in the past that the X-250 was a great piece, but did not care for the performance of the X-350. DeWulf gives great credit to Pass Labs for not getting defensive regarding his past review that was negative towards the X-350 and being more then happy/fearless in sending him the new X-350.5. for review, he believes many other companies would not, if they recieve a negative review from him in the past.

2) He states that even with all the "Buzz" regarding the new digital amps, class D amps, class LMNOP amps, when people come over to hear his system, they all first get caught up in the "eye-candy" regarding the X-350.5, and then respond with, "That thing sounds awesome!"

3) He goes into great details regarding the build quality and new design changes that filtered down from the XA amps into the new .5 series.

4) DeWulf has auditioned many highly regarded Solid State amps such Ayre, Edge, Parasound, PBN Sierra Olympus and does a fine job of comparing the 350.5's sonics to these other reference single chassis or mono-blocks.

5)His final verdict regarding the 350.5's place in the hierarchy of world class solid state amps, "This is the finest solid state power amplifier that I've had in the Big Rig to date-long live the new king.

Well, I'm a big fan of Nelson Pass and the other guys at Pass Labs, I had the 350.5 as my reference (did a review of it here on the GON) only to be replaced by XA-100's, and am glad that this amp finally got the credit it deserves in a well done and through review.
teajay

Showing 5 responses by guidocorona

Yes thank you, I've got it now. This is interesting because in the past, the original X.1000 was not deemed to be the best of the old series by any stretch. But the X1000.5 is the very latest of the lot, so it will likely incorporate the learning curve from all previous models/efforts. Thanks again. Guido
Thank you TeaJay for pointing out this new thread to me. . . looks like I will have to acquire a new amplification furnace for the Sweltering Austin Summers in some future. . . . or will Nelson Pass eventually create his own X.ICE amps? I am positive that if he ever decides to design them, they will sound just scrumptious.
"Nelson Pass has also
stated his new X.5 series and XA series just gets better with output!"

Gandme, could you please clarify the above? 
TeaJay, did the friendly crowd at Pass indicate to you if any member of the XA family could power the MG20R speaker by themselves comfortably, or if a byamping configuration is always recommended when applying XA amps to Maggies?
Hrrrumpf, we truly need someone to run the experiment. . . in the meantime. . . I'll be checking real estate listings in Juno Alaska! The idea of being kept nice and toasty by a pair of X600.5s, listening to Herbert Von Karajan conducting Sibelius's 2nd Symphony whilst pulling up Whitings in my very unique music-room-ice-fishing-hut-combo sounds mighty attractive all of a sudden. . .