Hello everybody I'm hoping somebody out there is a bit of a valve guru because I'm currently having trouble matching up my valve amplifier with a decent speaker cable. I have a puresound a30 valve amplifier and a pair of Tannoy revolution 8's which are attached via the 4ohm binding posts due to the tannoy's low impedance. My previous amp was an audiolab which was bi wired with chord clearway and was fine. Since I bought the new amp the sound coming from the speakers has been like I was holding a pillow over them. I had some QED silver anniversary XT, I tried that and the sound especially the treble has opened up and the music is now more revealing but sounds a little grainy and still not projected outwards as much as I know it should be (the amp and the valves have all been ok'd). Most opinion on forums seems to think that solid core copper is the way to go with a valve amplifier, I expect theres some clever mathematics to support this but nobody really goes into explaining why. I tried getting some advice from Hi Fi shops but so far dealers have only wanted to sell me the Chord Clearway that I already own and another place told me that nobody makes solid core speaker wire (and they were an audioquest stockist), so I'm really hoping someone out there either knows their cable or knows the in's and out's of valve amps, the help would be really appreciated Prices for a couple of meters of bi wired solid core cable seem to be in the £200.00 region, that for me would be expensive for something I never before believed made any great impact to the sound of a system, but I'm starting to feel like a little bit of a convert and I would be happy to pay a little more if it meant I could start listening to music the way I know this amp is meant to sound. Hoping someone can help and thanks for reading. Rach'