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-   -   10.2 Enclosure (http://www.diyaudio.com/forums/markaudio/197792-10-2-enclosure.html)

silverhairbp 3rd October 2011 05:43 AM

10.2 Enclosure
 
Mark,

Could you please identify and describe this enclosure? There are obvious size advantages, but how does it perform?

Bill

http://www.diyaudio.com/forums/attac...-maop-tw-2.jpg

markaudio 3rd October 2011 09:23 AM

2 Attachment(s)
Hi Bill,
Originally a vented design from Erich in Austria. I tweaked his design to make these cabinets. I like them very much. Bass is good, driver is well damped in this box provided at least 25-mm of good damping material is used on all the internal walls.

Currently being used to test Alpair 10 MAOP drivers. Really smooooth clean sound, a very nice combo.

I can ask Erich if he's happy to share this box plan.

Thanks
Mark.

wupsie 3rd October 2011 04:27 PM

Made this topic sticky :)
Me and me GF realy like the design of this box.

silverhairbp 3rd October 2011 04:51 PM

It would be very easy to envision this enclosure on top of a larger low frequency box. It might also be a great way to integrate a pair of these enclosures into a TV stand.

Cloocino 3rd October 2011 09:47 PM

Vented Box fpr Alpair 10
 
1 Attachment(s)
Hi there!

Here is my plan for the vented box for Alpair 10 as seen on Mark's pictures above. Fell free to use this plan for NOT COMMERCIAL purposes and DIY only and by respecting copyrights. For any questions feel free to contact me.

IMHO I think the sound is smooth, warm and very stereoscopic and roomy. It is especially suitable for jazz an acoustic music. However you will like it for its pop/rock performance anyway.

I would be happy if you let me know your opinion and experiences too.
thanks, Erich

silverhairbp 3rd October 2011 11:14 PM

Vielen Dank!

markaudio 4th October 2011 02:53 AM

Hi Guys,
Our thanks to Erich for publishing this plan.

I'm thinking of producing a different version as there maybe a possible tweak to the vent dimensions. We could afford a slight decrease in the compression loadings within the vent in the 45Hz to 70Hz range. But some care would be needed not to over-load the driver as the compression damping on its power-train will be slightly reduced.

At this time, the existing boxes with the MAOP drivers in them can develop 85dB (peak) @47Hz (generated single wavelength signal) at the vent with less than 2-mm of excursion on the driver's power-train. That's a very good effort from a box of this size and type.

If Erich is interested, I'll see if he'd like to draw it.

Cheers
Mark.

Cloocino 4th October 2011 01:03 PM

Additionally to my plan, I like to inform you, that there are some modifications of the dimensions done courtesy by Mark of MarkAudio to the original plan. Please respect this as a copyright advice too. Thanks

wupsie 4th October 2011 03:04 PM

Cloocino....u are a hero!!!!
Thank u very much indeed, job well done :) :)

buzzforb 4th October 2011 03:20 PM

Mark,
Have you had a chance to listen to the dMarKens from Dave? It would be interesting to hear how the two compare.


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