NuForce AVP-19 home theater processor/preamp Complete, with manual, remote control and room correction microphone.
4 HDMI ins support all the usual formats up to and including TrueHD and DTS-HD Master. It does not do Atmos or pass through 4K video.
Run it into some beefy old power amps and it easily sounds better than a new big-box receiver, plus it's far simpler and looks cooler.
Looks and performs as new. Not a scratch on the unit. Only sign of use is some wear on the bottom of the remote control.