I owned a 350 once with my 2805. I would recommend you start by placing the sub volume knob around the 11-12 o'clock position. Turn the crossover knob fully clockwise. Then, in the receiver speaker setup menu, place all speakers to small and in the crossover menu use 80hz. Your setup mic on the Denon will most likely set your mains and center to large, change them to small. good luck.


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