Golden Age Project Pre-73 MKIII Mic/Line/Instrument Preamplifier with OEM power

Tested by an actual musician who knows what they're doing ie me, not a pawn shop rando, works great. Note: this is a mono preamp not stereo, just looked it up. Somebody has that wrong in one of their listings. It will technically take a TRS input but it will be mono in/out.

I just hooked headphones (TRS) to the back output and it worked, but it's mono. Most people use XLR or TS in, XLR or TS out on these. XLR = mic, TS = guitar cable or equivalent. It can develop major hum-related issues I have experienced and troubleshot firsthand.