Musical Fidelity old vs new

I am wondering about what sonic differences there are between a Musical Fidelity a308 pre/power combination and the newer M6i integrated. anybody heard or owned both?
Cannot help you with those models but the newer 1000Wpc Mono blocks are way better then the older models.
Some folks are also of the opinion that the Musical Fidelity gear made in the UK is better quality than their products that are made in China. No direct experience myself, but perhaps worth looking into...
I have a NuVista M3 and it is very good.