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I had a pair of Jaycar 5" woofer\mids hanging about for years, unused and decided to build a simple 2-way using the 1" silk dome tweeter also from Jaycar. I wanted add external Xover and have the speakers bi-wired all the way from the amp to the drivers. A friend, very good with woodwork built the 15ltr boxes to my specs. I added vertical bracing to all sides and lined the inside with bitumanised heavy Al foil (flashing). Dacron was added around the bracing then one additional layer added throughout the box. Not overly damped. I added flashing to the back of the driver and the basket to dampen rear reflection. The rear port is quite small but works extremely well starting at 100hz and taking these small boxes down to 40hz. Nothing after 40hz though. The Xover nearly cost more than the speakers but is simple and X's over at 3,200Hz based on a linkwitz-riley calc. I tried other calcs. but they sounded awful. The external Xover is packed with dacron in an ABS enclosure and all binding post are gold plated brass. bi-wiring extend from the amp to driver and the two only share a common at the amp. I used split pair solid core Cat5 from amp, through Xover and inside speakers. One wire type, one configuration right through. These cheap boxes sound better my $6.5K 45kg Osborn towers. To improve the bottom end I added stereo sub-woofers powered by electronic Xover (60hz) and 50W Class D amp. See other post. Since these images have been taken removable metal grills held with rare earth magnets have been added. The finish is built-up with a combination of wet and dry rollers and is very thick, soft and heavily stippled. It is acoustically quite dead unlike a wood veneer or piano finish which reflects and radiates.