I am not suggesting that you go solid state, but when the speaker manufacture's own specs state a minimum power requirement of 50w - 200w coupled with an impedance dip below 3ohms, I get concerned about an integrated tube amps ability to drive the speakers. Typically, one thing that gets sacrificed with integrated tube amps is the quality and size of the output transformers.
We all agree that a mismatched amplifier to speaker combination will not yield long term satisfaction. If you do not have a chance to audition the amp personally, then I would error on more tube power based on your listening criteria and the speakers specification.
We all agree that a mismatched amplifier to speaker combination will not yield long term satisfaction. If you do not have a chance to audition the amp personally, then I would error on more tube power based on your listening criteria and the speakers specification.