Again, Adrian, we're all saying the same thing when it comes to competently. That's why I don't include your RCA receiver in my specification. I'm choosing receivers and amps that enthusiasts are likely to own; a midrange Denon or Onkyo would fit my spec just fine. Then using that receiver as a preamp for the amp reduces variables.
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I didn't do it, no one saw me, you can't prove anything.