That sounds like a great match. I drive my Tannoy 15" DC Golds with 10 watts and they play big. I have found that the quality of the transformers and current is more important than the number of watts.
Art Audio's transformers are great and I bet if you talk to them they might even custom wind to match your Tannoys.
Art Audio's transformers are great and I bet if you talk to them they might even custom wind to match your Tannoys.