Dave, if you had £1000 to spend - 2nd hand, on an amp to match SHL5s, what would you buy? I have tried the Sugden a21a, whcih i liked but on comparison is a bit trimmed ta the bottom end and loses some leading edges but lovely iwth voices and bounces along nicely, A Tube Technolgy Fusion which actually was a pretty good match, it lacked some warmth in the bass and was maybe slightly obvious sounding but all in all i couldn't pick the bones out of it, it just didnt gel with me, even though i couldnt say why.The Leben sounds beautiful, the tone, the presentation, the way it makes the Harbs image much wider and it's sense of air and but it wont give all this at the volumes I like now and again and i cant afford the Leben 600 ( which i guess is probably different tonally to the el84'd 300). The much Harbetherian revered LFD Zero is very rare and probably also out of budget. I could do with a Leben cs300 but with 8 el84s instead of 4! anyone sort that for me???