they will usually add maybe 5 or 10 watts per channel.. maybe a few more DSP's, and a few more input/output options(s-video, coaxial, optical,etc). i havent checked, but i truly doubt they added anything truly significient. just a guess..

if you can get the HK630 for $400-$500 bucks, thats a steal!!

bigjohn


EXCUSE ME, ARE YOU THE SINGING BUSH??