I have a marantz sr6013 that distorts the audio coming from any graphic equalizer when playing Redbook cd. I have set the on-board equalizer to a bit of a smile, flat. Changed all settings and can not get good sound from any rca input. Swapped cd/DVD players, equalizers, cables etc. Tried on different receiver and flawless. It doesn't distort directly from player, but sound is so dull and lifeless. Has anyone figured out a fix or do I have to accept the loss and move on? Want to use component eq and rca.