I've used a Markbass Minimark (150w@8 ohms/250w@4ohms) at a gig many times with a Markbass 12" cab. I had the Minimark adapted so that it can also be used as a cab with the integral head disconnected.
The Interbass is louder than the Minimark head with the same speakers.
The Interbass is louder than the Minimark head with the same speakers.


