Hi, I hope someone can help me... I have the Yamaha RX-A1080 and love listening to music and movies equally, but I have encountered an issue where my REL subs don't output any sound on 7 channel stereo... However, on the 2 channel DSP and all other DSP configurations, the subs work fine... the light on the front of the receiver says the subs are on but they're definitely not outputting any sound. Is there something I'm missing or has Yamaha cheaped out on this option if you have a model below the RX-2080 or RX-A3080? Considering I paid $2199 Australian dollars, I'd be pretty disappointed if there's not a work around to this...