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a-550

  1. Space_Boy_Bo

    Yamaha A-550 — left channel very low volume, full volume in mono — help diagnosing

    Hi all, hoping someone with A-550 experience can help me diagnose a left channel issue. I purchased a a A-550 off of FB marketplace relatively recently. The amp has been working fine, but recently the left channel volume dropped to about 10% of what it should be. Right channel is perfectly...
  2. B

    Yamaha A-550 - Static on the right channel

    Hi everyone, my yamaha A-550 recently started having intermitent static on the right channel, but only when the volume is over 2, sometimes even when nothing is playing. Any ideas? We already have isolated the problem to the amp (tried with different speakers and different sources), cleaned...
    • Baube
    • Thread
    • a-550 static in right channel yamaha
    • Replies: 5
    • Forum: Yamaha
  3. G

    Yamaha A-550 LOTS of distortion

    My father gave me his yamaha A-550. Looks like new. The sound is terrible at about 1.5 on the dial. on both side. looks like grinding noise when there is some bass or you know the noise when speakers goes bad (but they are not, i test them with other equipments) The volume is not so high too...
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