I have Proac 125's and a Proac CC1 center. I also have three Canton CD250's. I have been playing around for the last few days with both sets. They have both been used with a 309i sub, and levels have been set with a meter. They have all been set as small and cross overs of 80Hz. When I've tried the Cantons the bass from the sub has been audible, clear and precise. When I've tried the Proacs I dont really hear the bass from the sub. In fact I can turn it off and not hear any difference. I usually leave the sub on auto and again with the Proacs it doesn't seem to turn on during normal TV viewing as often as it does with the Cantons. I can't understand why there should be such a difference when all settings on the Amp are the same for both sets. Can anyone shed any light on why this is happening.