The Project

The project consists of using the existing speaker drivers, in a speaker cabinet and adding the tweeter units. With the cheap amplifier, this should form a good environment for experimentation.

Cardboard Test Enclosure

For placement and initial testing, I used a cardboard enclosure.

The woofer and tweeter mounted on a cut out cardboard box. This arrangement is to test the relative placement of the tweeter and woofer and worked out very well. A wooden enclosure will most probably improve the sound.

• Compact bookshelf format

• Wooden high quality finishe with cloth grille

• Heavy curtaining material in the rear of the cabinet for good damping

• Shallow cabinet for space saving- effect on sound quality will have to be tested

• Simple capacitor based crossover with adjustment

Construction and Testing

Testing the speaker with the tweeter in the cardboard enclosure showed that the speaker had clear sound qualities. The tweeter was relatively loud, however a suitable resistor will take care of this problem.

The production of the lower frequencies does not seem to be affected too badly by the fact that this is an open box, effectivley mounting the unit freely without any proper enclosure. Since the bass response being fairly good, a shallow cabinet can be built which can be wall-mounted to save space, and which will not stick out into the room.

This project has now been discontinued.