I'm enjoying great music with my 808 and 911s now. If I do upgrade, it'll be the FMA 268 + 1811 but this won't be anytime soon.
Listened in well know and controlled situations a lot of times mostly all of the models amps/preamps Fm Acoustics including their top speakers.The timbre is too old and colored at my ears. Definitevely is not my cup of tea. Burmester, especially, the combo on your hands (911's monos + 808 Mk5) is far better in all regards, especially in the timbre with no any colorations, shocking neutrality (Burmester is absolute best in such parameter) and awesome musicality. Pure nature of sounds. Think to add in your system a Burmester digital player (e.g. 069's with reference power supply unit) and you'll reach straight the heaven easily .
All the best from Johor