Thanks guys, I'll try a few different cables...
sspears - I seemed to recall you saying you liked the blue cable... I'll persevere.
Malcolmw - I agree, the calibration test tones are generated internally by the 568 so I'm not sure why you'd get the crackling noise! Very strange...


568, 558, Sony 7700 DVD, M&K - S125 L&R, S125C, S85s, SS150THX surrounds, MX350THX subwoofer.