Speedster Reloaded

Speedster Reloaded


Project Category:
Bookshelf Speakers

Project Level:

Project Time:
20+ Hours

Project Cost:
$100 – $500

Project Description:
A versatile, easy to duplicate and very nice looking casing concept for the legendary Paul Carmody’s Speedsters.

Design Goals:
Layering of CNC machined casing parts (made from any kind of wood) with seamlessly integrated BR pipe. No sealing or glueing required for assembling. Just screws.

Driver Selection:
Speedster Reference Design:
– TangBand W4_1720 Mid-Woofer
– Fountek Neo 1.0

Enclosure Design:
Bassreflex with front port.

Enclosure Assembly:
Trapezoidal. Layered wood CNC machined. No glue or sealing required.

Crossover Design:
Speedster Reference Design. Potentially to be fine-tuned.

A good project for my new DIY milling machine. Looking forward to the first soundcheck.

About the Designer:
R&D Engineer – Professional Audio Video Broadcast Business (RCR/Thompson Multimedia/Alcatel).


Add yours
  1. 2

    Finally decided not to go for the front vented design due to the larger dimensions. Has now normal backport with plastic tube. The CNC router is a cheap China 6040Z-S65 model with some minor modifications (USB control interface).

  2. 3

    I recently joined a makerspace that has a large CNC router. What program did you use to make the CAD file? Was it difficult? is it something that is downloadable/shareable?
    Thanks in advance!

  3. 6
    Michael Wynn

    You mention `easy to duplicate’. Please let me know if you would be prepared to cut a second pair? I am building an amp and eying this speaker design, but am lousy at making anything look nice!

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