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

I’ll listen to The Chain again (haven’t heard it for a while) and consider adding it to my audition playlist. Dealer said he prefers to use Tidal HiFi for auditioning.  So far my audition playlist contains songs that have very specific passages that have exposed other amplifiers as not quite doing well enough in particular areas, especially when A/B testing those same passages with a second amplifier.

Tested the Gryphon Diablo 300 today. It really is very confusing testing in-store instead of in-home. At this point I THINK I am proceeding with the Diablo. The shop had them connected to the B&W 802 D3’s (for reference I have the 803 D2’s so a much different speaker. Used Transparent Reference speaker wire. My first reaction was one of completely losing my bearings, due to the soundstaging. It was actually so distracting that I had trouble focusing on my usual areas of analysis. I am not a very good audiophile.... The vocals were so completely formed at pinpoint dead center it was spooky. It took some getting used to. When I shifted or turned my head it really messed with the soundstage which was even more distracting. Then I discovered if I leaned forward I found the soundstage was much less fragile when shifting or turning my head. I concluded the speakers were towed in too much. The experience for me was similar to using a very good pair of headphones. I now understand what others say about the Diablo being “muscular” and “controlled”. I’m not sure I enjoy this effect, vs a more relaxed and “free-flowing” effect. But I do think I’d get used to it. Transparency and detail was very good. Overall this is miles ahead of everything I’ve tried up to now. On the other hand I did have a bit of trouble engaging with the music - it was very controlled, a bit “uptight” vs relaxed and flowing. HOWEVER- I am 90% sure that the elements I found slightly unenjoyable could be attributed to the speakers. When I bought my 803 D2’s I compared them against the 804D3’s and concluded the D3’s midrange, while more detailed, was too forward and aggressive for me. So I am thinking this effect is likely present in the 802 D3 as well. Now I need to decide whether to take a chance and proceed with the Diablo 300. As I said, I was very impressed. Just think it was the B&W 802 D3’s that weren’t really my thing. I do need to travel to visit this shop so maybe I need to head there for one more session and maybe I’ll try a different set of speakers this time. Or maybe I’ll just take the plunge.... Need to think on this. Lastly I didn’t bother testing the McIntosh 462. I know the Diablo was not even comparable to the 452 so I knew the 462 wouldn’t have a hope. I just focused on the Diablo. As you can probably tell I left the audition impressed with the Diablo but also a bit confused.  Oh one more thing. I’m certain that Fleming subcontracted Batman to design the Diablo chassis. And the remote. Which doubles as a weapon.

No, Flemming is an industrial designer and painter. He worked with great engineers to make these pieces happen.
I think, that's my guess, that perhaps in addition to what you said about speakers, the Diablo was not really burned in. It needs 200 hours minimum initial burning in. I don't know how well Transparent Reference cables work with Gryphon and B&W speakers, and maybe they were not burnt in properly either. That's the problem with some dealers.

Nyev,

I know what you mean with the speakers, when i was going to buy a pair of 800 D3 series speakers. I listened to 800, 802 and 803 speakers, the 800 speakers
where excellent but you need the room size and equivalent electronics to drive them to get the best from them. The 800 was crossed off as my room couldn’t
accommodate them. Then I listened to the 802 D3 again due to the turbine head which is the same size as the 800 D3, they require careful placement, the dealer never
set them up correctly. I too had the same issue of focus / confusion etc as you have encountered, I think the speakers need quite a big room to breathe and focus. So they too
were crossed off. Then i listened to the 803 D3, they were just right, good focus, good midrange, good bass and generally a enjoyable speaker. I listened to various amps and ended up buying them.

"When I bought my 803 D2’s I compared them against the 804D3’s and concluded the D3’s midrange, while more detailed, was too forward and aggressive for me,"

There is a massive difference between the lesser 804, 805 in comparison to 803, 802 and 800. This is primarily in regards to the turbine head, I believe the 800 series really begins from the
803 speaker. As the midrange treble is night and day in comparison to the ones without the turbine head.

What do you mean by this-

"I now understand what others say about the Diablo being “muscular” and “controlled”."

Does it it have huge dynamics? Does it catch you out if you have the volume turned up and your listening to a quite passage then some loud music comes through? Does the music flow effortlessly?

Whats the strings like? The bass does it hit you hard like a Mike Tyson punch in the chest? Can you listen to it forever? Did you hear things you haven't heard before?

Did you get a chance to listen to the Chain?

I think it would be beneficial for you to go back for a second listen and listen through something you are kind of familiar with likes of 803 D3 speakers. There is no point you changing your speakers
to something else as you are not going to be familiar with them. You'll be even more confused!