You can mute them, just read the manual, I forgot EXACTLY how but u can.I would have to say that the 880 is a nice deck. I'm still tweaking with it, but does anyone know how to Mute speakers? I held down onto the multi-control on the speaker option but it just allows me to adjust the levels for my left or right speakers. The 8600 allowed me to completely mute the front or the rear speakers so I could adjust my subwoofer how i wanted to. Oh yes....the 880 is a very very nice deck, the 8600 is a great deck but the 880 is better.
