Now, its not like me to ask, but Im considering a change and I really dont know what I want, although I do know what I am trying to achieve. At the moment I have a Naim NAC72 with a custom power supply feeding a pair of NAP 135 power amps. These big Naims are suffering from clicks and pops from the house electrics and its beginning to get on my nerves. Also, the last gig I went to at the Sage in Gateshead, taught me a bit of a lesson. The sound was big and open with a solid driving bass, the kick drum could be felt rather than heard. The Naims give a great interpretation of the music, but I now feel there is something missing, its as though the sound is thinner and more compressed than the live sound and the bass, although very precise, does not have the sense of power that I would like. It seems to me that the way forward is something like a s/h Audio Research tube amp or maybe one of the big Brystons. Something powerful and smooth, with great bass control and slam, but excels with detail and retains a high dergee of agility. Obviously you can spend a lot of money to get this level, but I am looking for a step up or sidewards from the Naims. Trading in the 135s the 72 and a 140 power amp I have stashed away should net me around £2K and I am prepared to add anothe £1K or so to that. So budget would ultimately be £3000-£3500 for a s/h or ex demo pre power or integrated if needs be. Its rare you get the chance to home demo this sort of gear and I am certainly not trying to carry my NEAT Ultimatum 7s to a nearby store as it takes two people to pick one of them up. So I am trying to build a short list of possibles, nothing with poor reliability or bad spares back up and no What HiFi best buys, Im looking for people who have real experience with equipment and buy on what they hear. Thanks.