I have just acquired AN K loudspeakers and after giving them a rigorous sunday morning work out, they are really starting to charm me, a clear yet warm and open sound with jazz, very enjoyable. Now folks tell me I simply must use them with tubes, well I kind of do a little bit already, my pre amp is a Croft micro 25, power is Quad 909. So I need either a tube power to match the Croft or a tube integrated (my preferred choice). I have been told a type which takes EL34 valves is the most preferable. Please throw out a few suitable model names for me to go a searching......Budget - not much at the moment! Anything around £500 or less would be good, a bit more may'be…….So obviously used at that price!