Vintage Harmon Kardon High Voltage Amplifier (Citation 24) and Pre-Amplifier (Citation 21) In perfect working condition. Just serviced by the professionals at Classic Audio Repair. Power Output: 100 watts per channel into 8 ohms stereo. Frequency Response: 0.07%Hz to 490Khz. Total Harmonic Distortion:0.08%. Please note- On the Pre-Amp- missing 1 output jack on Tape 1. The item "Harmon Kardon Amplifier and Pre-Amplifier" is in sale since Sunday, November 3, 2019. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Stereo Receivers". The seller is "rbrauer58" and is located in La Jolla, California. This item can't be shipped, the buyer must pick up the item.