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hk 990

  1. Oggioffshore

    Harman kardon HK 990 humming sound

    Just got my eyes on this HK 990 amp at the market place. And got curious. Googled it, and liked what I red, and pics of how it's built even more. And 20 kg of power... Seller say it's a humming sound from it, probably from the dac part... Have no experience with "digital" amps. But i think...
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