Pioneer Amplifier Combo

Selling a Pioneer M-790 Stereo Power Amplifier combined with a Pioneer CX-770S Stereo Tuner Control Amplifier. This used combo delivers powerful, clear audio for your home entertainment setup. I have tested them, and they sound great! Features include: * 4-Channel High Power Amplifier * Dolby Pro Logic *only tested tuner and outputs front a and b. Front A works amazing. I can't seem to get front b working don't know if its something I'm doing wrong or simply not working.* If the ad's still up, then yes, it's still available.