I have a Kinki EX-M1 and have changed the op amps to:
4 x single Muses03 plus Burson v6 Classic dual - astonishingly clean and lucid sound but lacking in weight and impact.
4 x single Muses03 plus 1 Muses01 dual - incredibly natural, detailed and powerful. This takes the M1 to a new level.
I have seen reviews (YouTube) where 2x Muses03 on an adapter to replace a dual op amp sounds far better than Muses01 does. I have that on the way along with several other options. Will try to report what I find in the coming couple of weeks.
4 x single Muses03 plus Burson v6 Classic dual - astonishingly clean and lucid sound but lacking in weight and impact.
4 x single Muses03 plus 1 Muses01 dual - incredibly natural, detailed and powerful. This takes the M1 to a new level.
I have seen reviews (YouTube) where 2x Muses03 on an adapter to replace a dual op amp sounds far better than Muses01 does. I have that on the way along with several other options. Will try to report what I find in the coming couple of weeks.