Pulsar Kicks
CNC-Machined Pine, Electronics, Drivers. 2011.
'Pulsar Kicks' is an MTM (Mid-Tweeter-Mid) speaker constructed from CNC-machined solid pine (5/4 stock). The audio design is closely based on the very popular Overnight Sensations design by Paul Carmody. The name is appropriated from astronomy and is thought to be appropriate because of the star-like patterns on the baffle emanating ('star' + 'emission' -> 'pulsar') from the mids, and its ability to reproduce the oomph of 'kick' drums.
So far, two have been constructed for personal consumption; they sound great (and loud)! More may be coming if there is demand...
Audio Design Details
Woofer (HiVi B4N) and tweeter selection (Dayton NDF20F-A), as well as cross-over design, follow Carmody's Overnight Sensations. The enclosure in 'Pulsar Kicks' is slightly enlarged and tuned lower for even more bass. Additionally, it uses a single forward-facing trapezoidal port, rather than a pair of rear-facing tubes, to allow for near-wall placement (and, of course, for aesthetics!). The rear panel is removable -- a vital feature for fine-tuning the insides!
Construction Details
Internal bracing and machined reinforcements allow for strong but internal-space-saving walls. As a result the enclosure is rigid (good for acoustics) but also relatively thin and light! Stuffing is attached to the inside of the walls -- experiments with foam or rubber padding may be conducted in the future...
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