I have had Aerial 9's over 6 years. NOTHING else has been consistent in my system over that time period. They are not perfect, but they can be made to sound nearly so at the price point, and with good strong amplification. One issue you have is your power. The Aerials like a lot of good solid power. I have tried 100-200wpc SS amps, which did not fully flesh them out (either the Herron M1s or Clayton M200s). They sound great with the McCormack DNA500, Cary 500MBs, and my current Clayton M300s. They sounded very good with the hybrid Lamm M1.1s, but the Lamms did reach a point where they would run out of steam (at a quite loud level). I am not sure what your 100wpc tube amp would do. Maybe consider bi-amping them (I have no experience with that). My advice is to try them with your amps before buying.
All that said, I would be very interested in your comparative impressions between the 7T and 9, either here or off-line. Thanks.
All that said, I would be very interested in your comparative impressions between the 7T and 9, either here or off-line. Thanks.