I recently came into possession of an NAD C370 amplifier along with a pair of ProAc Tablette 2000 bookcase speakers, an audioengine s8 subwoofer, and a music hall usb-1 turntable. I used to use the turntable and the sub with a pair of powered audioengine a5's and that worked out great, but I just got all this nice gear and tried to hook it all up. It didn't go great. As of right now have the sub hooked up to the pre-out 1 output and the turntable hooked up to the Tuner input (there isn't a phono). The speakers are hooked up to the A outputs, but when I play the turntable I can only hear the subwoofer, which can be adjusted with the main volume knob. Before this I tried running the turntable into the Main In inputs but when I played it that way it was unbearably loud and the volume knob did nothing. I have to assume that the Main In input is for an input with its own adjustable amp, but I do not know how to make any of the other inputs come through the speakers. Any knowledge, experience, or wisdom would be much appreciated. Thank you.