Fostex BK-12m Folded Horn Cabinet - Each

BK-12m Folded Horn Cabinet for ~ 4-5" Full Range Drivers - Each

This is the flat-pack cabinet used in the Fostex BK-12m Speaker Kit.

The cabinets are locally cut by CNC machine from high quality multi-layer 11/16” Baltic Birch and delivered flat packed.

The through hole for the driver measures 4.05" (103mm) and is chamfered to promote optimal air flow.

The maximum driver depth the cabinet will accommodate is 3.54" (90mm). 

Fostex drivers that fit the BK-12m

FE126NV2, FE108NS, FF125WK, FE108-SOL and discontinued FE126NV, FE126En, FE126E, FE127E, and FF125K will also fit.

Markaudio drivers that fit the BK-12m

• Alpair-7MS Gold or Grey
• CHP-70-P
• CHR-70-Black, Gold, or Grey
• Pluvia Seven HD Chrome, Gold, or Paper.

Wood glue, clamps and a little sand paper are all that is required for assembly. Detailed assembly instructions are also included.

Completed cabinets measure 31 5/8” tall x 7 1/4” wide x 14 1/2” deep. The unfinished/unstained wood is ready for your choice of finish. You may also choose to round over the edges if you prefer that style of appearance.

The rear of the cabinet is already cut with two holes for binding posts. We recommend the Propeller Posts. Please select your preference from the drop down menu. You may also choose to cut a hole for an input cup if you prefer a flush rear of the cabinet as opposed to binding posts.

Tools Required for Assembly:

• Elmer’s Wood Glue
• Sand Paper
• Bar Clamps (3x 24", 2x 36" - the more the better. Available at your local hardware store, or online at mcmaster.com)

Download BK-12m Cabinet Plans 

Assembled Cabinets with Drivers Installed: