6SN7 based Pre-Amplifier

I have many years in the Audio field ,and for the moneys I have listened to and compared notes on parts quality
value and sound , for a 6as7 based preamp , the New Consonance cyber 222 Mk-2 is a real gem it has it's own
seperate outboard power suppy, it now uses Auri cap capacitors and 1% film resisitors and uses a micro processor controller relay for the volume panel.
The unit weighs over 33 lbs ,it was at $2000 and was lowered and improved how many companys look at how to do both and succeed.The build quality is as good as any $4000
unit I have owned .I put in a decent power cord, replaced
the EH 5ar4 with the Best MUllard which has much better control and dynamics , and a matched quad of Chrome dome Sylvanias from the 1950 for under $300 for the tubes,
you now have a pre that will go toe to toe with most any $4k unit ,and do compare apples for apples for value.

The Consonance sure looks enticing, the tube config also looks right.
(Love them 6SN7s)
The concern is whether Consonance can build a 6SN7 preamp
thats quiet and not bloom-and-gloom bloated.
It would be great if the inside is point to point wiring
(potential for turning the thing upside down into a known-world-class design if it comes up short)
But for that price I guess you cant go wrong.

The Ming needs all the tubes replaced. It is a fantastic pre-amp and not just a bargain. Modifying this would only add a bigger smile. Just plan on spending some good money on the top tubes. RCA 6sn7 Grey glass is a must with maybe a Ratheon 6sn7gt in the power supply position which I believe is the left position. Lots of combinations with this pre since there are 4 different families of tubes. You can't even begin to compare this tube to anything until you tube roll. The stock Chinese tubes hold it back in a big way.

For $800 I don't know any better the this puppy

Cheers

Regarding the Ming Da MC-2A3.

Am already using RCA2A3 for rectifiers, GE british EL34 for regulators,
and swapping from among my RCA smoke glass, CBS, stubby Sylvania chrome tops, and KenRads.

Each combo yields a different flavor (color) and I am having a hard time deciding which one's best. The only thing I can say is that any of the
above NOS is better than the stock EH.

Also swapped out the "Philips" lytic cap next to the 6SN7s for Black gate 350V 150uF, and the "BC" lytic in the regulation circuit for Mundorf Lytic.
I am hoping it will make the bass tighter (cant expect too much afterall this is a pure zero feedback design).

Coupling caps/output caps are swapped to Jensen 0.22uF and Mundorf silver oil 2.2uF.

Things are settling in (the initial brightness of the Jensens are starting to fade) so I cant really give a verdict yet.