Marantz AV7704 pre-amp with all the modern goodies you may want, from HEOS to Atmos. Outstanding quality and condition. About a year of use. Second owner. Kept in a rack away from sunlight in a smoke-free environment. I had it in a dedicated home theater, which I'm now consolidating into a large family room that already has an Emotiva XMC-2, so this puppy needs a new home. Original box, calibration microphone, manual, remote, power cable, WiFi/Bluetooth antennas, and the cardboard tower for the microphone.