This unit works great but I wanted to use it as a preamp, and combined with my ZROCK2 it's just too much gain.

Built 2017, standard GE caps, includes a Mazda Cifte 12AU7 tube from Upscale Audio.  The unit has not been plugged in much, so the tube should have plenty of life left.

$400 shipped CONUS.  I will also happily trade straight up for a ZBOX (the one with unity gain)

See my feedback elsewhere:
https://www.audiogon.com/users/whoopycat
https://www.usaudiomart.com/userfeedback.php?user_id=99049

If that's not enough, I just bought a jazz CD recently from Lon on the Hoffman forums.  ;)

Pix can be seen from the listing I bought it from here:
https://www.audiogon.com/listings/lis8ij96-decware-zstage-gain-stage-preamp-tube...

trade complete