These large rack ears allow you to mount your Markbass SA 450, SD 800, TSA 500, TA 501, TA 503, 
Studio Pre 500 or R 500 amplifier into one unit of any standard rack case.

 

The lightness and portability of Markbass products is to some degree negated 
when heavy flight-cases are used. But when the musician transports his gear 
himself (in other words, outside of tour situations where the goods are 
transported by others), Markbass covers are a practical choice: lighter, 
less expensive, and still very protective.

Fits also:
Mini CMD 151 P
New York 151 Black
New York 151