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Building instructions
The cabinet consists of 19 mm boards glued together (butt jointed) and a 16 mm double baffle. First of all, make the required cut-outs in the baffle and the double baffle and make the chamfers.
Start building using one of the side-panels. To this, attach the front and rear pieces, top and tunnel board. Then fit the reinforcement pieces and then the second side panel. Next, place the cabinet on its top and glue the sides for the bass tunnel in position. After that, the two base panels are fitted. Next, the outer front panel can be glued in place. The rounded parts of the bass reflex port are intended to reduce flow noise at higher output levels.
If an amplifier module is to be used, the cut-out required for fitting it is cut into the rear wall. If no amplifier unit is to be used, fit an ST 77 connection terminal in the rear wall.
Depending on how the amplifier module is built, it may be necessary to physically separate the loudspeaker space from the amplifier module inside the cabinet. In this case, the cabinet will have to be made larger so as not to steal any space from the woofer enclosure.
Inner damping
The cabinet is loosely filled with 6 mats of damping material, leaving the area directly behind the bass port free.
| Cabinet parts list for 1 box |
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| Parts |
Size (mm) |
Quantity |
| |
| Material: 19 mm MDF or chipboard |
| Side panels |
520 x 480 |
2 |
| Top, buttom panels |
337 x 480 |
3 |
| Inner front panel |
337 x 413 |
1 |
| Rear panel |
337 x 463 |
1 |
| BR-channel, top panel |
337 x 230 |
1 |
| Braces |
337 x 80 |
2 |
| Brace |
394 x 80 |
1 |
| Brace |
212 x 80 |
1 |
| BR-channel, side panels |
50 x 249 |
2 |
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| Material: 16 mm MDF or chipboard |
| Outer Front panel |
520 x 375 |
1 |
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