Headphone amp that improves the sound of any quality headphone. Audio Pass-thru, so can be Used in Tape-Loop or ahead of a preamp. Uses Original Phillps 6922 Pair of Tubes. Very quiet output, and this unit has not been modded. The unit is in good condition and hasn't been used much...so the tubes will last a while. Some barely visible scratches on the front panel. I tried to capture them in the pictures. Original box, manual and standard Wall-wart Power Supply Included. I am selling below blue book for a quick sale. The price is $230 + shipping. PayPal: Add 3%.
