Adcom GFP715 Pre-Amp W/GFP-710RC Remote & Power Cord

Denon DA-300 USB Audio Preamp Headphone Amp/DAC DSD128

Schiit Saga SCH-20 + tube preamp with 3 tubes (6H8C) and remote

Adcom GTP-500 II preamp and GFA-535 II amplifier, terrific pair, orig. $850

Enlightened Audio Designs Corp Theater Master Ovation Preamp Black

Kenwood Basic C1 Preamplifier - Fully Serviced

Rotel RSP-1068 Preamplifier with Sound Processor, Serviced & working fine

Vintage Nakamichi 410 preamp