New Schiit Freya or used Conrad Johnson PV-10AL/BL, or?

Beside being single ended only, same passive, same relay controlled volume control, except 64 position instead of 128.
Tube buffer is bit different, unity gain, output impedance 180ohms  on the Saga, and 5 gain, 210ohm output impedance on the Freya.

Cheers George

PS: to those thinking about the $699 Freya. That don’t need balanced.

There’s also the Schiit Saga at half the price $349!!!, single ended (no balanced), 5x inputs, 2 x outputs, active tube or passive outputs (no s/s) output. It still has a remote control, and again relay controlled 64 positions volume control 1db increments, which is plenty I use 48 with no problems.
http://schiit.com/products/saga

Cheers George

A little more analysing here to find the best of what to choose from, instead of just plucking from the air.

If you look at the input sensitivities of both Vincent SP-331 or McIntosh MC2200, they need very little to drive them to full output, only 1.2v at (47kohm) for the Vincent and only .75v at (50kohm) for the Mac.

The Schiit Freya will be the best, a very good match for these in all modes, (passive, tube or S/S) as it have very little gain, which is a perfect match for these amps
.
The Conrad has way too much gain, and as a result the volume control will be very loud even down low in the range.

Cheers George