I compared the Mat Ref I vs II a few years back and the II was clearly better with better extension and a bit more neutral.
However I think if you are going to spend $300+ for an IC I would buy a Gabriel Gold Revelation MKI (if you can get lucky and find one) which I think is better all around by a fair amount but with similar sonics (beautiful tone).
However I think if you are going to spend $300+ for an IC I would buy a Gabriel Gold Revelation MKI (if you can get lucky and find one) which I think is better all around by a fair amount but with similar sonics (beautiful tone).