Upgrade from AQ King Cobra to Columbia DBS


I'm currently connecting my Jolida Fusion Pre to my BEL 1001 MK5 using AQ King Cobra, 2M. Would it be worth while to upgrade to AQ columbia with DBS, buying used? Thanks in advance for opinions.
mesch
Thanks Bo.

Zd542, Mr Brown passed away in 2009. There is a company that services the BEL 1001, Audio Summa. My Mk5 was manufactured in 2007. Bought from a dealer used. Love this amp, probably the best piece in my rack. I have enjoyed your posts elsewhere. Thanks
Seems there are 2 versions of the columbia. 48 and 72 DBS. Any comments regarding the amount of 'charge' to the shield?
You need to go for the 72v version. This version is already a few years on the market. The newer versions are more dynamic.