MHZS Audio CD-66, Looks nice but is it any good ?

Vince interesting the mods you made. I just had my cayin 17 opamps changed by a local tech guy. And it has made a significant improvement over what was out of the box great player. So changing opamsp is easy(they pop out) and highly recommended.
Now I'm looking for better 6922 tubes.
But also may change the caps to Mundorf, which will cost me 200/parts/labor.
Do you suggest changing the caps?

Thanks. Not sure specificly you mean by modifying power supply. The Cayin offers 2 high quality power supplies. But i do recall my tech guy mentioning something about 'buffers" if this is what you mean.
He also did not highly recommend changing the caps to mundorf as it would only mean a "flavor" difference. He suggests I search out a quad of 6922's and put my money in that first. Then maybe looking at changing caps.
No i'm not getting caught up in the tweaks and forgetting the music. I'm trying to bring as much revealing to my music as possible. My classical collection is near complete and so have a few spare $'s for tweaks.

Kevin i bought a cayin 15 tube player from an audiogon member 2 yrs ago. Has 2 6922's. he had Amperex BB's in it , one blew recently. I'm looking to replace it.
The other day i had the opamps replced and madea significant improvement. So all in all, this $550/used unit with BB's + opamp upgrade can be placed along side other units costing 2-3X's the price. As you mention the Classe not besting the MHZS, with no upgardes.
I'm sure if you rolled the 12AX7's in the MHZS(or is the 6922 tube?) + change the opamps, all can be done for under 300, you'd find it'd blow out the water the Classe. And several other highly regarded ss cdp's I see mentioned around here.
I know my Cayin 17 with new opamps + if/when I find the right 6922's will match other players in the 2-4K range
Point being there's potential and possibilities with these chinese tube players/DACs that for a minimum of $'s can be upgraded to become a real 1st class player.

I'm considering tweaking the power supply and/or caps.
My 2 cents.

I failed to mention the audiogon member who sold me the 15 mentioned he regrets selling it, just after i sent him payment. If he could only hear the player now, he'd really know his mistake. As it come awefully close to the 17's performance.
The opamps in the 15 maybe superior to the 17's replavcements as i pd $50 each in the 15 and only $25 each in the 17. But the 17 with good tubes will best the 15.
I'll make a report as things progress.