This is one of those David Halfer Kit amps from the late 80's. Expertly assembled, (if I say so myself), original box, manual (and schematics, I think) This is one of the few preamps that output a 2.0 volt rms signal allowing one to drive their amplifiers at maximum output. Asking $125 plus shipping (around $10, I am guessing). It's been boxed in the basement for several years, now, and it seems a little too good for the garage sale fare I am preparing to sell. All offers considered.