I haven't heard the NHTs, but I own a pair of the CDM9NTs and I have been very happy with them. I listen mainly to classic jazz, rock, and classical in that order, with some country and R&B thrown in for good measure.
In my opinion, the CDM9s do a good job of presenting the music accurately without getting too bright or forward. They do equally well with recordings that feature plenty of horns (such as Coltrane's Blue Train) or those that feature piano and bass (Keith Jarrett's Live at the Blue Note). They also do well with large orchestral pieces (I just got Kleiber's recording of Beethoven's Fifth, and it sounds fantastic). They stay very composed as the volume increases and don't break up until you reach truly loud listening levels.
As for the bass issue, I went with the CDM9s rather than the CDM7s because they do a significantly better job with the bass. I run mine off a Denon AVR-4802 (would like to add a separate amp in the future, but this works fine right now). They are two months old and they keep getting better as they break in. No buyer's remorse here.
In my opinion, the CDM9s do a good job of presenting the music accurately without getting too bright or forward. They do equally well with recordings that feature plenty of horns (such as Coltrane's Blue Train) or those that feature piano and bass (Keith Jarrett's Live at the Blue Note). They also do well with large orchestral pieces (I just got Kleiber's recording of Beethoven's Fifth, and it sounds fantastic). They stay very composed as the volume increases and don't break up until you reach truly loud listening levels.
As for the bass issue, I went with the CDM9s rather than the CDM7s because they do a significantly better job with the bass. I run mine off a Denon AVR-4802 (would like to add a separate amp in the future, but this works fine right now). They are two months old and they keep getting better as they break in. No buyer's remorse here.