Hey all..i guess some of you will have seen my other posts where I'm wrestling to get the sound of my system right in my conservatory. In summary the acoustics of the room mean I need to increase the bass level somehow. My current setup (see below) has no tone controls. Hence I tried adding a sub, sort of worked, but It niggled me that my speakers should be able to deliver the lower freq (down to 30Hz) on their own. Also my power amp should be sufficient at 100w per channel. I tried a 25 year audiolab 8000A as a preamp and on its on and, with the bass at +3db, it really helped and confirmed the speakers could deliver the bass if it was present at the source. Hence my shortlisted options are a) add a preamp (CA don't seem to make one) , b) swap the kit out for an audiolab 8000C/P or 8000S/P or c) get something like a Marantz PM8005 integrated amp.