....I've tried changing cables and plugs. I'm running it with the RX-Z9. Any thoughts? It's a hum that there when the RCA in is plugged in off of the front sub out.
I had a boston acoustics sub once that would hum if I bumped the RCA cable end hooked into the sub itself. Bumping it again or shaking it would make it good with the world again. I wish I had a more scientific reply, but you never know.
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