Hey Might have a slight problem with the azur 540r im not sure. I currently use only 2 front speaers at the mo, listening to dvd's in stereo is fine, no probs at all. Tho if i perhaps select a surround sound mode such as DTS or DD the sound output goes really quiet and i really have to crank up the amp to get a decent lvl of volume . Is this expected ? I wouldnt of thought only running 2 speakers would make a difference in volume ?