Harman Kardon HK 825

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Harman/Kardon hk 870 hk 825 Preamp & Power Amplifier

video demo of a harman system.

Kef Q700 + Harman Kardon HK 775 Monoblock Amplifiers

Macbook Pro DAC + Harman Kardon HK 825 Preamp + a pair of Harman Kardon HK 770 Monoblock Amplifiers. Beautiful sound ...

Harman Kardon HK825 and HK870 Restoration 9-29-13

Restoring a vintage Harman Kardon audio system. There were a number of things that I forgot to mention during the filming, due to ...