Ryllau, It all depends on your taste! I have the Amati's and being driven by a hybrid amp (nuvista 300 - 300wpc) and love it. I never tried an all tube amp, so I can't comment. I did compare big SS amps (ML & Krell mono's), but was not impressed. took away the speakers sensuality and muicality. However, go listen and compare. but what ever you decide upon, make sure you get a good 4ohm capable amp, as these speakers prefer it.
good luck!
good luck!