Dan Turner:
Hi Nandjg - You and I have quite similar set-ups, and you're asking youself the very same question I was asking myself about 6 months ago! I've got a CD93, A32/P35 & PMC TB2+ speakers. Initally I had them hooked up with QED SAB exactly the same as you. I was contemplating buying some fancy speaker cables and I gave PMC a call to see what they recommended. They said they use Van Damme in all their R&D and the professional studio installations they do. So I got myself some of the 6mm HiFi LCOFC speaker cable -
http://www.vdctrading.com/products.asp?SubSectionID=1&Page=3 - and some of their screw-on bannana plugs.
I found a massive improvement straight away over the QED, even though the Van Damme on paper looks like (at best) a sideways step. Very happy, and glad I didn't spend silly money (PMC guy laughed when i said I was thinking about splashing out, which speaks volumes I guess).
Unfortunately I'm not sure if there are any hifi retailers who stock it so don't know if you could try before you buy, but at £4/m or whatever it is I just figured it was worth a shot. Like me you'd need to double up on single wire lengths as I don't believe they do a bi-wire version.
Really hope this helps!
THanks for ther info Dan, I'll make some enquiries.