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Multi-Way Conventional loudspeakers with crossovers

Troels' PMS (multilayer assembly) build thread
Troels' PMS (multilayer assembly) build thread
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Old 2nd December 2009, 12:25 PM   #21
WaveFlex is offline WaveFlex  France
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Installation of the cross-over on the bottom-plate
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Cross-overs are bolted to the bottom plate using "silent-blocks" which are actually nothing else that short pieces of isolation from a 50mm˛ power cable.

Does not look very engineered, but should uncouple the cross-over mechanically from the cabinet and from the "feel" it gives will do it's job.

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Looks huge actually
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Old 2nd December 2009, 08:27 PM   #22
WaveFlex is offline WaveFlex  France
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Here we go with the dry assembly...

Installing the 10mm threaded rods (3/8" should do as well) on the bottom plate (rods are 1 m overall length) and assembling back-side-parts
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Assembling the front-side parts :
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Adding one bracing
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Going on with some rear and front-side elements
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Top view showing the groove in the back-side parts
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More parts
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Old 2nd December 2009, 09:29 PM   #23
WaveFlex is offline WaveFlex  France
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Just keep it going...

Bracing for the woofer area
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Fitting 1/4 parts on the front-side of the cabinet for the front-plate (using 1/2 or 1/4 drastically reduces raw material consumption for only slightly longer machine time)
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Tiling them up, tiling them up... a couple of minutes later (no kiddin')
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Wofoer area assembled, lower mid-volume enclosure in place
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Some more parts for the the mid-volume, a total of 7 are necessary for the 4 liters something needed
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Finally the closed volume
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The cut-out on the top-layer is for fitting the mid, we'll see later that it will cause some trouble...
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Old 2nd December 2009, 10:18 PM   #24
WaveFlex is offline WaveFlex  France
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Skipped the starting point in the previous post.. here it is.. bolting the rods to the bottom plate
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and this one

Rear-side view showing the curve of the cabinet
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Old 3rd December 2009, 12:43 AM   #25
SamL is offline SamL  New Zealand
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What a beauty.
Is the small baffle that driver mount on to, is it replaceable?
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Old 3rd December 2009, 12:42 PM   #26
WaveFlex is offline WaveFlex  France
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Quote:
Originally Posted by SamL View Post
What a beauty.
Is the small baffle that driver mount on to, is it replaceable?
Yes, basically it is, but the real question is what kind of drivers to fit instead!
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Old 3rd December 2009, 01:25 PM   #27
WaveFlex is offline WaveFlex  France
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Finished dry assembly
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Front view
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Rear view
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Playing around with the parts, using some of them upside-down, gives this.

Yet another reason not to paint them..
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Old 3rd December 2009, 01:45 PM   #28
WaveFlex is offline WaveFlex  France
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After correcting the positition of the front plates (they were too low actually) and fitting the ground plate this is what it should look like at the end.

Front view
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Rear view
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With the front-plates
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Old 3rd December 2009, 01:58 PM   #29
Dr_EM is offline Dr_EM  United Kingdom
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A fascinating construction! Should be really solid when completed
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Old 3rd December 2009, 02:59 PM   #30
WaveFlex is offline WaveFlex  France
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Some inside views...

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