FOR PARTS or Repair. In Good Used Condition. Powers Up. (missing power switch cover), and worked when I connected a tuner to it. That's all I could test. Please see pictures. WYSIWYG

Harman Kardon HK725 Stereo Pre-Amplifier Ultrawideband (FOR REPAIR/PARTS ONLY

PLEASE, Feel free to ask questions and make offers! Cheer's!