I have NH600, NH700, NH900 and RH910.
NH600 has to much middle frecvency,
NH700 is better only with custom EQ
NH900 is the best 1st generation Hi MD. Sound is balanced. Perfect with custom EQ. Strong volume, but still annoying compared with RH910 wich I thing is the best. It has a warm sound and no matter how loud you turn up the volume does not bother the ears. Of course I am not fun of listen of loud music, but this informations hope to help someday to someone.
23/5000
23/5000