I have for sale my Balanced Audio Technology VK-31 tube preamp. It started as a VK-30 and was upgraded to VK-31 with $500 remote and Six Pak option. This is a great sounding unit with transparency and delicacy. Bass resolution is great and the highs are silky smooth. The unit uses 6 x 6922 tubes and can be upgraded to VK-31SE. Some will argue that the VK-31 is better sounding than it's VK-31SE counterpart due to tube rolling option. You can use several variants of 6922 and 7308 tubes. I think the VK-31 closely resembles the sound of it's bigger brother the VK-51SE.
The VK-31 offers not only the latest industrial design as found in Balanced Audio Technology's reference VK-51SE preamplifier, but incorporates new flexibility in ordering configurations, as well as significant component upgrades that dramatically improve the performance of this world-class product. The component changes incorporated into the VK-31 are based on the same technology used in BAT's reference VK-51SE preamplifier:
Vishay bulk-metal foil resistors replace the already high quality Caddock resistors in the plate-loading circuit.
Vishay bulk metal-foil resistors also replace the standard metal film resistors as the shunt element in the volume control circuit.
The new front-panel of the VK-31 is a beautifully sculpted modern design that is now available in either a two-tone silver and black color or all black at no additional charge.
And finally, the new VK-31 allows the customer to add optional Six-Pak and Super-Pak modules to further enhance the dynamic performance of this compelling new addition to Balanced Audio Technology's tube preamplifier lineup. Optional remote as well as phono-modules further enhance the VK-31's convenience and versatility.
With all these improvements, the VK-31 yields a substantial improvement sonically over the former VK-30. Transparency, dynamics, and top-end extension are remarkably enhanced. And yes, all VK-31's can be fully upgraded to the VK-31SE! Visit your BAT audio specialist today for a convincing audition! All you need to do is listen.

BAT VK-31 with optional remote

Rear

Inside

The price is $2400 and rated conservatively at 9/10. I can ship the unit in US/Canada only. I accept payment via Paypal, MO, Check and Cash. Low ballers will be ignored.
Thansk for looking.
--Levi