Hi there. I just wanted to point out the high relevance that the sub settings (amp level and crossover frequency) have for the sound of a home cinema/hifi set. I do it just by writing about my own experience, which finished (up to now) with giving up and going the "easy" way... I tried to follow several remarks about the settings, which I found in several places in internet web sites of sub sellers. I couldn't get the proper sound I could hear in audition rooms and with systems which shouldn't sound better than mine. I got usually too boomby bass, in the region where my stand loudspeakers and my sub were working together. But I also got the very low frequencies very enhanced, and "holes" in freq in a higher region of the spectrum. The reasons are clear to me, and I know the theory about how to solve them... Damned theoreticians, you'd say... Yes, I am one of them Nevertheless, I couldn't set it properly, after very much tuning and many days standing up and trying to get it fixed. My girfriend goes crazy when I stop a movie and try something... I know it could be easily done if I had proper tools, like an spl-meter and some cd with sounds in the different freqs that would help to recognise the cross over of my set and to adjust the level of the sub amp. But I am not really eager in spending the money in such things, so I tried with the help of my ear... which proved to be not enough. Maybe I will need to go on shopping... So, these days I decided to get the job done by my Yamaha amp, which cuts at 90Hz and everything below is sent to the sub. That way is easy, because the crossover doesn't make any problem, and then the amp level is easily set. I was really happy when I could hear a defined and clear bass, without extremely low freq (like an explosion in a movie, that shakes the house) trying to destroy the walls while I almost couldn't hear the dialogues, and without annoying boomby peaks in the mid-bass region. The sound is now defined, clear, and deep. I am satisfied, although I have a feeling of location sometimes, which I know shouldn't happen... Could be something psychological... At the same time, I think it is a pity to have floorstanding speakers for nothing I wonder if I am totally clumsy about it, or more people also experience this... Or maybe people doesn't realize about it? It would be nice to read your opinions about it. Anyway, cheers.