Black Jack 312ST Triangle Studio


More volume from a smaller cab with this unique three driver triangle configuration.

With a third driver and beefy 3/4″ baffle, the 312ST delivers more power from the same compact size cabinet as the 212ST.


Three driver cabinets were popular throughout the 1960’s and 70’s with guitar and bass players alike. The 312ST is a capable workhorse that provides plenty of volume with high power amps, but still works well with more compact modern small heads.


A closed back is recommended for traditional punch, but open backs can be selected if more air is required for your application.


Studio trim features metal corners and baffle piping. Side mounted black metal reach in bar handles are standard. Choose from any of our available options to customize this cabinet to your requirements.


The Black Jack 212ST D is crafted entirely from Void Free Baltic Birch- NO MDF backs, NO particle board baffles. We use box and finger joint shell construction for strength, and expertly apply Tolex with hide glue to ensure good looks and a long life.



Dimensions: 26″ x 27″ x 14″

All cabinets are made to order. Average build time is 4 weeks.

Weight 58 lbs
Dimensions 31 × 31 × 18 in