I am needing money and have to sell my tube pre-amp. It is a Transcendent Sound Grounded Grid pre-amp that was built from the kit. Here is some information on this great tube pre-amp. http://www.transcendentsound.com/preamp%20kit.htm I changed the input selector to a home theater bypass switch. I would rewire it back to a 3 input selector instead of CD or bypass if you would like. Other upgrades include: - added true HT bypass - replaced all the diodes to hexfreds - replaced output caps to Auricaps - replaced the coupling caps to Solens and Zen North Creek - added a time delay relay that mutes the output during turn-on when using SS amps. - replaced all the tubes to GE NOS military grade 12au7's. - replaced volume pot to Alps Black Beauty - replaced stock red led on front to a blue led (looks very sharp) It is in excellent condition with few very minor scrapes on the unit and sounds very clean and extremely neutral. I am asking $650 plus shipping.