Hi,
I have Norge-1000, but no pers exp with 2000. This topic has been previously discussed on this forum. You can search the forum for more details. I can tell you the general conclusion of the searches...
- Norge-1000 has generally Neutral performance with sufficient detail across full freq range, whereas N-2000 is expected to have strong bass, but a rolled off top end. Potential buyers are advised to audition them and find which suits their musical preference better.