BK-12m Folded Horn Kit - Fostex FE126En

There is a new high-sensitivity folded horn speaker kit being offered by Madisound.  The new BK-12m is a single-driver folded horn speaker kit that follows in the lineage of the BK-16 and BK-20 designs.  The BK-12m uses the Fostex FE126En full-range speaker driver in a custom folded horn enclosure while the driver is run full range with no filters whatsoever.  The Fostex FE126En driver is 4.7" (120 mm) in diameter with a rated sensitivity of 93dB/W(m).  This high-sensitivity means that the BK-12m speakers will be suitable for use with low powered amplifiers.

BK-12m Folded Horn Kit - Fostex FE126En

The enclosure panels are made using high quality 5/8" (16 mm) thick Baltic Birch multiplex cut using a CNC machine and bundled as a flat pack.  Once completed the speaker cabinets have overall dimensions of 31-5/8" x 7-1/4” x 14-1/2" (800 x 185 x 370 mm).  The Birch plywood is unfinished so you can finish the speakers how you like.

The BK-12m speaker kit includes:

• 2 x Fostex FE126En 4.5" Full Range Drivers;
• 2 x Unassembled, unfinished Baltic Birch Cabinets;
• 3 oz. Acousta-Stuff internal damping material;
• 5 ft Supra Classic 1.6 15 AWG speaker wire;
• 4 x QC187 Quick Connects (2 red, 2 black);
• 8 x 8X1 Socket Head Wood Screws (8x Philips Head wood screws also included);
• Assembly Instructions.

To put the kit together you will need just a screwdriver, wood glue, sand paper, bar clamps and binding posts.  An inside view of the folded horn speaker enclosure is shown in the photo below.

 

Inside - BK-12m Horn Speaker Kit - Fostex FE126En

 The BK-12m kit is available from Madisound for $315US + shipping.  For full details about the BK-12m speaker kit see the product page at Madisound.

More single-driver speaker kits and projects:

• Tang Band D4-1 DIY Back Horn Speaker Kit
• Fostex FX120 ML-TQWT Speaker Project 
• Fostex FX120 Bass Reflex Bookshelf Speakers