Author: Ronald

Even though the outer dimensions were pretty much fixed at 40 x 40 x 40 cm, I wanted to create

On to the separate parts, let’s start with the front baffle. This baffle consists of 2 pieces of Birch ply.

First up, the inner baffle that the driver bolts on to. Baltic Birch ply, 19mm. Same hole pattern as the

The brace is kept as simple as possible. It makes the enclosure more rigid and will move panel resonances up

Starting with the top panel, made of 19mm baltic birch. The bottom panel is exactly alike, except for the few

Just a few parts to go, a few braces (4 of each) that are put in the corners of the

To power the subwoofers I used the Hypex NC500MP module. It is a nice, compact and efficient 500 watt into

Blue line: Woofer in free air. Red line: Woofer in enclosure. Green line: Woofer in the damped enclosure. The smoother

The graph above is the result taken at the listening spot after a measurement session aligning the subwoofers with the