Mid band distortion mechanism in MarkAudio paper cone drivers

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JR_W,

Other 4" MA drivers have smaller cutouts vs the Alp 7.3 - you can use supra-baffles maybe?

Dave has most of the driver drawings here:

Frugal-phile | Box Library / Mark Audio

Thanks for the advice, but I hate to cobble something together unless a last resort. I really don't know how long the A7.3 pair I have now will last, I don't really crank them very hard. Having a spare pair in reserve will at least give me some time to think about the next move when the time comes.

Gratuitous shot, because I really like it!
 

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Is that veneered plywood or mitred solid wood?

Very nice, but you must be quite far off axis 😀 .

Veneered ply - they were flat packs from Planet 10, I just veneered the top and front with 1/64" birch ply (too thin, not recommended).

They are toed in a bit, the imaging is actually incredible at normal computer operating distance - it's like the monitor is the source.
 
IINM, the Pluvia series - I'd be surprised if there aren't other models soon? - represent, among other things, an effort to reduce the net amount of material used in the frames, and to simplify enclosure fabrication / installation.

While to date the most readily distinguishing feature of Alpair designated models has been the thicker basket/frame assembly and symmetrical voice coil lead-out / terminal configuration, I'm sure there are differences in every component and material composition of the drive train / cone / suspension system.

As Scott notes, Mark and the entire engineering team are constantly juggling the tasks of new product R&D and manufacturing / quality control. Can't be an easy job for such a small company. It'd be nice to know what's up their collective sleeves in terms of new products / production scheduling, but I'm sure they're stretched pretty thin, and would have a hard time predicting any particular revision or new model would be ready for public release.
 
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