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denon 4520ci receiver

  1. Receivers, Amps, and Processors
    Hi First post here, and it's a long one. Short version: I'm desperate for a firmware file (USB, network or RS232) for my Denon AVR 4520 receiver. Long detailed version: I made an automatic update (ethernet connection) and it bricked the amplifier so it got stuck in a retry loop and finally...
  2. Subwoofers, Bass, and Transducers
    Hey everyone, I've been lurking here for quite a while and trying to find a good thread that pertains to my particular issue, but I have been unsuccessful. My question pertains to the sound quality and placement of subwoofers in my great room (which will be doubling as a movie room for the...