I recently setup my Elan amp with my Pioneer Elite VSX 32 receiver and need some help with the volume. I have 5 pairs of speakers in various rooms through my home. Each pair is wired to an in wall volume control. When i turn the volume control to full blast the volume is still very low. My receiver send a fixed output signal to its zone 2 which is what i have the amplifier connect to via analog connection, so i can't adjust the volume any higher from the receiver. When i increase the amp's volume for each of the 12 channels, the volume is still pretty weak. Any suggestions? Where should I start troubleshooting with the amp?