I am little confused about the merits of connecting a subwoofer by its high level connection or its blow level connection. I know that REL recommend using the high level connection from the speaker out connection on the back of the amplifier as this ensures the subwoofer receives exactly the same signal as the main speakers. Many people on this forum prefer to use the low level connection from the LFE channel on the AV receiver. If the crossover is set at 80Hz, this relieves the main speakers of the burden of low frequency reproduction which can improve sound quality (and allow higher volume). I can understand that the LFE connection can be effective when playing DVDs recorded with an 5.1 sound utilising the LFE channel. However my question is, does this LFE connection also work when playing two channel stereo CDs or, if I connected the subwoofer via the low level connection only, would I then lose all programme material below 80Hz?