The Mk 2 uses a 22K lin pot…. the circuit is quite different. Both mixers sound very good, mainly because of the high overload margins and the delightfully simple Baxandall EQ, but I actually prefer the sound of the Mk 1 although technically it is inferior…. the mic amp distortion is on the high side…. but it is ‘class A’ so the distortion is pleasantly harmonic.
(Apologies for my error on an earlier post….. saying that the gain pot was the same on both models!)