Sony PS-LX350H record player installation

I recently got a Sony PS-LX350H record player. I have it running through a USB Phono Plus preamp to a Dennon AVR 1601 receiver. Everything is hooked up correctly. All the cables are working, but when the record plays, no audio comes out of the speakers. I can faintly hear the record playing on the needle itself, but only feedback comes out of the speakers.

Any idea what's going on? Help would be greatly appreciated.

Reply 1 : Sony PS-LX350H record player installation

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