I have recently gone AV with a 540R & Kef KHT 2005.2, after many years of traditional stereo and I admit to being an AV newbie. In stereo & digital 5.1 I'm very happy. But getting surround from Nicam TV or Video (incl Dolby surround tape) I'm not. Using Dolby PLII setting - which is what I believe I should be doing - I get 5.0 - there seems to be no subwoofer output. The 540R offers a variety of DSP surround modes (6.1 according to the display). Using this I do get subwoofer, but they appear to replace, not modify, either stereo or PLII. As has been noted in other threads, the Cambridge manual is very skimpy - it merely tells you what function the button provides, without any explanation of when or why you should use which. Neither does it or the web site provide a help line number ! I have heard great things of what Pro Logic II can do, but right now I don't feel I'm finding it in my system. Am I missing something, just demonstrating my ignorance, or do I have a problem. Experienced advice will be much appreciated !