You may/may not have seen my thread about connecting to a Velodyne CHT-15 sub for hi-level but what I would like to know is: Will it still be hifi sound? I suspect not as the sub's xover will be controlling the bass and it depends on how good the sub's xover is I guess. As my speakers go down to 30Hz (so say the manufacturers of my Monitor Audio 703's) and I will have the sub's xover at 80Hz (you can pick 80Hz or 100Hz) will I be getting every bit of signal from my Arcam 8R amp and 8P power amp which is being sent to the sub? I've been contemplating about this for weeks now and I'm still no nearer the answer. I have to purchase 18 metres of speaker cable to connect up if I want to test what the sound will be like and if I don't like it that will be a waste of a lot of money. Someone please put my mind at rest, please.