Going out on a limb here, but here goes... I own a pair of MA Silver RX8s that were in my main system for several years and am very familiar with their strengths and weaknesses.
I have read glowing reviews about the Tannoys.
Soooo...because the Tannoys have that concentric driver I'm pretty sure they will sound more coherent and certainly image better than the MAs.
The MAs will play very loudly and remain pretty clean.
If it were my money, I would go with the Tannoys, but my priorities are coherence, imaging and sound-staging. YMMV
Good luck and good listening to your new system!
Tom