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Bryston 4B3 vs Mac MC462 vs Pass Labs X250.8, OR... GRYPHON Diablo 300?

Hi,
Over the next few weeks I am organizing in-home demo of  three pre/power amps for my B&W 803D2's, and will purchase whichever sounds best.  I will be testing the following gear, which is based on what's available where live:
-Bryston B173 / 4B3-McIntosh C47 / MC462
-Pass Labs X250.8, if I can get my hands on one (will probably use the C47 pre-amp to test with this)
The Gryphon Diablo 300 is also a candidate.  I've seen some strong comments from others that Gryphon is in another league compared to the others.
My question is, barring what sounds best to me during my auditioning, in general to most people would the Diablo 300 really beat the others in my list?  And, are there any material disadvantages to sound quality considering the Diablo is an integrated vs the other choices?  I don't really care about having separates, but sound is obviously important.
Secondly related to the Gryphon, there is only one Gryphon dealer that is even remotely close to me.  Should that dealer cut ties down the road, or go out of business, does anyone know how I might go about getting service for the Diablo should I require it at some point?  Is that a valid concern?  There are multiple Mac dealers near me so that would not be so much of a concern.

Thanks in advance for any feedback....


nyev
morg111
16 posts
 
Nyev,
Missed your later post about not being able to get your hands on the 462. Well...alas, my search continues for a 462 review. There is one that Mac has attached as a marketing tag in their MC462 marketing from a Norwegian reviewer, though it is so bad, it sounds like the reviewer just read the marketing hype on the 462’s increased dynamic range and usual power, and then added a few more words to make it their own. Really, that bad, unless a whole lot is lost in google translation to English.

I’m still keenly interested in your comparison: 4B3 v MC452 as HiFi-Advice sent me a private email raving about the Bryston’s paired with my Martin Logans, however he admitted without hearing the Macs, that’s just a straight recommendation.
nyev OP
57 posts
 
I will actually have the opportunity to test the 462, but not in my home.

In a few weeks, after my in-home audition of the Bryston 4B3 vs Mac c2600/452, I’ll be testing the 462 in a shop and comparing with the Gryphon Diablo 300 connected to B&W 803 D3’s (again I have the D2 which is not the same but that’s the closest I can get with my audition of the Gryphon vs c2600/462).

After that test, I hope to be able to make a decisive choice.

 


jafant
10,525 posts
 
nyev
Thank You for citing your current set-up. After all shoot-outs have been completed, give a shout-out for your dealer/retailer!

Looking forward to your next report.
Happy Listening!
bob82
5 posts
 
I have been using the Bryston 4B3 since 2016 and have since changed to tube preamp to drive and will say the soundstage produced is detailed, dynamic, transparent and neutral. The older iteration of the Bryston 4B has been known to be very forward sounding. I have pondered on trying to swap the Bryston with something more warm sounding like McIntosh or the Pass Labs but always find myself trying to replicate neutrality from solid state amp with a touch of warm from a tube pre for my next upgrade. 
inna
5,245 posts
 
A word of caution. Gryphon Diablo 300 will outclass any B&W speakers. It is not a bad thing but you will not hear the Gryphon's full potential with those speakers.
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