Hi folks I was wondering if you could help me with a bit of a quandery? I have the above Yammie pro logic amp and absolutely love the sound quality, hence I was loathe to get rid of it and had it upgraded by Videotec in Oxford so that it is possible to connect a DD/DTS etc processor to it which works via the volume control on the Yammie, so far so good. This mod works fine but I do seem to have a bit of a problem with the bass management. The reccomendation from Videotec is to mix all of the bass from the front speakers and the .1 sub bass and connect a sub to the sub out on the amp. This is high pass filtered and passes all of the bass 200 hz and below mixed from the front 3 speakers. The advice I was given was to set the sub to a crossover point just above the minimum frequency response of the front speakers about 40hz or thereabouts. The problem is that I managed to total my previous speakers, Tannoy M3's, because a full range signal is still going to them and I don't want to do the same to their somewhat pricier replacements R4's. So I have been running the sub from the sub out on the processor, by passing the sub out on the amp. The only problem with this solution is that although it works fine I can only adjust the sub volume on the sub itself as the output would efectively be fixed Can any of you come up with a safe speaker solution? Thanks in advance guys.