Mesa Boogie F50

[Spence]

Anyone modded one of these?
I find they're a little hard sounding so I've ordered a vintage style alnico speaker for it in an attempt to sweeten it up.
Be interested to hear of any improvements with tubes too.

[Analog Assassin]

No mods here, but I'd like to see what it is...my bandmate has one and it is a really nice sounding amp. Doesn't have all that extra bull that Mesa usually has.