1) For me, a tube amp will best suited for W&P 7 because its' sounded a lot more musical.
2) For a tube amp. you need a higher power rating amp to have a good & well control bass.
3) I am using a modified Manley Designers Reference Ichiban amp for my W&P 7. It has a triode mode of 260 Watts and a 520 Watts on pentrode mode. It also used a full set of Tung-sol 6550 tubes. I used it on a pentrode mode because of a far better control on bass, and a beautifully sound treble extension.
4) With this amp, my W&P 7 has a very balance, detail and a very dynamic bass & treble extension.
