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sm3205

  1. Richs_Trains

    Optonica SM3205 no output.

    Okay, so I have a ton of Marantz stuff, I love it, but every now and then I stray. This tine it is an Optonica SM 3205 amp. Optonica was Sharp's attempt to compete with the big boys in the 70's. I have a 4646 and it is built like a tank with three power supplies (one for each amp and one for the...
  2. Richs_Trains

    I strayed, maybe someone can help.

    Okay, so I have a ton of Marantz stuff, I love it, but every now and then I stray. This tine it is an Optonica SM 3205 amp. Optonica was Sharp's attempt to compete with the big boys in the 70's. I have a 4646 and it is built like a tank with three power supplies (one for each amp and one for...
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