Gaz,

Hope this doesn't offend, but having been an owner of a pair of AE Speakers until a few months ago, (Aegis Evo 3's) if I was in your position, that is where I think the biggest improvement could be made to your system... Moving to my Spendors was the one and only "night and day" upgrade I have ever experienced, not suggesting you go for the same, but in my (limited) experience, I think you could get a bigger improvement looking there instead of T-amps... Just my POV, of course, but could be worth investigating further...?