The BOSS BX mixer is now enjoying a second life. It's very popular. Its amplification is incredibly powerful! I always set the small output volume (20%) and small channel volume (20%), but when I turn the GAIN knob up to 80%, I get amazing sound quality with less noise. Connecting a compact effect pedal like the ZOOM MultiStomp allows for a great DAWLESS setup for a room. I have confirmed that all buttons and operational elements are working correctly. I have also confirmed the functionality of all audio inputs and audio outputs. Returns and refunds based on the symptoms/condition described in the product description are not accepted. Please purchase only if you are satisfied with the condition.