Another suggestion for your consideration would be the Wavestream Kinetics Deluxe Reference Level 5.1. When I bought mine a few years back, the price new was $10,000. I'm not sure what it may be priced at now.
It is an all vacuum tube design currently using (2 x 12AX7, 4 x 6DJ8); with extremely low noise ( I believe with the external power supply, noise is below 1uV (one-millionth of a volt ) competing with the best of the solid state phonos; providing 3 front panel selectable inputs providing 62 dB of gain (without the use of SUT’s or FETS) with a useful cartridge range of 0.2mV to 1.2mV. Having both Balanced and RCA inputs and outputs; adjustable loading available on the back panel via custom loading plugs; and an essentially flat RIAA EQ curve within one tenth of a dB (.1dB) from 3 Hz to 40 Khz.
Naturally, with any vacuum tubed high gain phono stage you will want to use selected low noise tubes, but I can say when using my NOS Mullards in this phono stage, it is dead quiet with my ears up against the speakers with my Dunlavy Signature SCIV's 91 dB sensitivity. I love not having to use a step up transformer with this phono stage; not having to worry about the SUT coloring the audio signal or worrying about possible hum issues, and having to use extra interconnects and connections, etc.
The Wavestream Kinetics gives me the pure, high gain, low noise sound that I love. It is incredibly dynamic in both the micro and macro sense, never runs out of steam, has the "meat on the bones" which I crave, brings the human voice to life, showcases the resonance of the body of cellos and acoustic bass, has the finesse for brushes on cymbals and snares, etc.
It truly is an incredible phono stage built by Scott Frankland, a genius when it comes to engineering and designing audio circuits and a true gentleman in every sense of the word who offers incredible customer service and support, which is the icing on the cake! I can't speak highly enough of both him and his products. This phonostage, imho, is an endgame piece!
For those of you who may not remember who Scott Frankland of Wavestream Kinetics is... He is the "F" in the MFA audio brand (Moore, Frankland & Associates) from years past who made incredible sounding vacuum tube amps, preamps and phono stages. You also may remember him from the famous V-8 tube amplifiers he made...
I will try and attach some photos of my phono stage below. This phono stage is quite large and heavy!
It comes shipped very securely in a very heavy duty wooden crate...
The outboard power supply came in a doubled cardboard box.
This phonostage is a behemoth. Very wide and extremely deep. You will need a large, sturdy shelf with lots of depth to be able to place this unit.
If you are looking for a vacuum tubed phono stage for around the $10K mark, you owe it to yourself to look into this unit. It is amazing!!!
Best wishes to you all,
Don