Denon Avr3000 . It's an AV receiver but I run it 2 channel with 2 pairs. This thing is awesome, even compared to my 2270 I sold recently. I read a review
Denon Precision Audio Component/AV Surround Amplifier Model AVC 3530G Photo #1298586 - US Audio Mart
Is this old Denon Amplifier (AVC-3530) with Energy speakers worth the trouble to set up? : r/BudgetAudiophile
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