Glad you still have the joy of listening to your great system while all that is going on around you. A great way to escape for a few hours listening to your system which you apparently enjoy.
I have several audio systems including a pair of Tannoy DC 10A, with similar sensitivity to your Turnberrys (93dB/2.83 V/m). Tried them initially with 8 watt SET amplifiers which was not enough. Now running my Tannoys with Canary Audio M350 with 50 watts (monoblocks of 4 300B tibes each). The extra power gave the Tannoys extra grip and definition with great bass. Currently, my favorite combination system to listen to most any music.
In your next upgrade, you may consider an amplifier with a bit more power to bring out more "control" from your Turnberrys. Then again, maybe the 25 watts suffices, I did not try my Tannoys with 25 watts. Ultimately I think if you enjoy your setup now, just sit back and escape. There is always a "better system" available around the corner, and it never ends. Sounds like you found a combination that you like, which is all that matters.