Having never beleived much in the hype around subs and managed with a 5.0 system for years, I finally dipped my toe in the water and bought an MJ Ref 100. Took me a while to integrate it properly, although it still needs fine tuning. Temptation, as always is to think 'I can't hear it' and turn it up. I quickly realised that rather than 'hearing' it, best results are gained when you only notice it when you turn it off in the middle of something. Anyway, wow. What a difference. Watched Deep Blue Sea last night (crap) and the effect was awesome. Brilliant. I was concerned that it would affect my music listening but setting Xover to 60 and keeping the level low beefed everything up nicely and really allowed my speakers to sing. I'm well impressed and would recommend anyone who is sceptical about subs to have a go. Trouble is, now I have yet another expesive upgrade path to follow.