I have a VT 200 MkII and cannot fault it other than the heat it produces (only a problem in the summer in SoCal) and the aforementioned cooling fan noise if you sit within 10 feet of it (I have not tried switching it to low speed either). It is an incredible amp. On hand I have an extensively modified McCormack DNA-1 modified by the builder himself and a pair of Manley 300B/SE/PP monoblocks so I can compare it to some pretty good sounding gear. The fan is not at all intrusive, but in a very quiet listening room, you will hear it between tracks.
The MkII is a "faster" amp than the MkI sounding cleaner and affording more detail because of it. There is better attack and cleaner transients. The cost of upgrading a MkI to a MkII is pretty steep and costs alot more than the price difference between the two amps on the used market.
The MkII is a "faster" amp than the MkI sounding cleaner and affording more detail because of it. There is better attack and cleaner transients. The cost of upgrading a MkI to a MkII is pretty steep and costs alot more than the price difference between the two amps on the used market.