What do you have the volume set on the back of the sub, a good rule is 10'o clock to 12'o clock position. Do you have the crossover set on your receiver? I have mine set to 80hz and all my speakers set to small. For CD's and radio music I listen in Direct mode. Also, if you click the round button on the remote while your listening, it will cycle through each channel, what sound level do you have the sub set at? Have you run the Auto Setup with the Mic on the Denon?

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