Just finishing up a uMar-Ken build with some Alpair 5.2s i’ve had in a box for a while.
I used some silky oak (lacewood) and Tasmanian blackwood for the vent spacer and splines.
Apologies for not taking any photos from the build stages. This project got a momentum to it and I didn’t have the presence of mind to log the build… Just had the first coat of hardwax oil. One more coat to go then drivers will be popped in and break in will begin 🙂 Hopefully these and the finished build photos when taken will be of interest to some.
The silky oak was only 11mm after milling so I made a double thickness plate to support the driver. You can see the chamfer around the mounting screw holes. The rest is as per the uMar-Ken plans.
A fun little project and my desk at work will have a new toy soon. Really looking forward to the second coat of oil when the real depth of the grain will come out and pop!
I used some silky oak (lacewood) and Tasmanian blackwood for the vent spacer and splines.
Apologies for not taking any photos from the build stages. This project got a momentum to it and I didn’t have the presence of mind to log the build… Just had the first coat of hardwax oil. One more coat to go then drivers will be popped in and break in will begin 🙂 Hopefully these and the finished build photos when taken will be of interest to some.
The silky oak was only 11mm after milling so I made a double thickness plate to support the driver. You can see the chamfer around the mounting screw holes. The rest is as per the uMar-Ken plans.
A fun little project and my desk at work will have a new toy soon. Really looking forward to the second coat of oil when the real depth of the grain will come out and pop!
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I used some silky oak (lacewood) and Tasmanian blackwood for the vent spacer and splines.
Lovely looking wood. Makes for some pretty little boxes.

jeff
Gorgeous joinery, and I can certainly identify with forgetting to photograph every step along the way.
Final coat of hardwax on, terminal cups and drivers installed and she’s up and running! They look beautiful and really happy with how they’ve turned out 🙂
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Those particualr plans are part of a paid planset (some 3 enclosures so far, plus stealthWoofer “stands”). Please email if interested.
dave
dave
Not clear in the above sketch is that the “SET” designation refers to trapezoid shape, which are more than a teensy bit more complex a build, and I’d opine that for most folks, the theoretical sonic advantage would be hard to discern.
Dave asked what my listening impressions were on the uMarKen5.2 and they're breaking in nicely so I feel I can now give some feedback. I have them sat on either side of two 24in monitors on my work desk and the thing that has struck me most is the soundstage. It's really quite remarkable when listening to acoustic tracks and vocals it’s as though the instrument/singer is right there in the screen. I've never had this experience in such a small near field environment like this. Absolutely lovely - thank you 😊
There are variations on the woofer design for each box shape.
And while the Peerless woofer is likely avaialble in Oz, i also plan on doing some for the less expensive (but hard to find outside NA) Silver Flute W14
dave
And while the Peerless woofer is likely avaialble in Oz, i also plan on doing some for the less expensive (but hard to find outside NA) Silver Flute W14
dave
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