Sometimes moving up in a line does not get you the results you expect....for whatever reason. That was the case for me, I used many varieties of MIT and found the most enjoyable in my system was the 330 and 750 series.
As I moved up I found the sound either too detailed, or lacking coherency (which is the marketing mantra for MIT). I still use the terminator series in one HT system and 750's in another. But I have stopped chasing them in my 2 channel system.
As for the poles and input impedance and settings and the several dozen innovations over the years I can't explain and really don't have the appetite to try and figure out. I was using MIT before they had networks but after listening to other lines that sound better to me I have moved on. Not to mention they are über expensive! However, that's just me...YMMV.
As I moved up I found the sound either too detailed, or lacking coherency (which is the marketing mantra for MIT). I still use the terminator series in one HT system and 750's in another. But I have stopped chasing them in my 2 channel system.
As for the poles and input impedance and settings and the several dozen innovations over the years I can't explain and really don't have the appetite to try and figure out. I was using MIT before they had networks but after listening to other lines that sound better to me I have moved on. Not to mention they are über expensive! However, that's just me...YMMV.