I don't have anything specific in mind yet -there are plenty of different options. I've actually got a couple of series of designs half finished, but they never moved forward due to lack of time etc. from Dave or myself. It may be time to actually do something about that. 😉
Mark Audio 12 P Gen.2 Bauvorschläge
Dear DIY community! And thank you very much for the great echo! There’s something going on!
Hi Dave, hi Scott – I’ve done something! Yes, Scott sends you heaven – Dave had probably misunderstood me, but that’s not a problem. It is of course the Mark Audio Alpair 12 P Gen. 2. I chose it because it has an efficiency of about 92 dB and a resonance frequency of 42 Hz +/- 2 Hz. And one thing is clear to me the 10. 3 goes deeper – but more membrane moves more air.
And if e. g. a DBR housing, a BVR (short horn) housing, a TL housing or a ventilated thin wall reso housing (with 9 – 12 mm birch plywood) ala “Wilimzig” with 40 – 50 liters and a height of max. 65 cm approx. 44 Hz – 50 Hz reached the world is fine.
And since the MA 12 P Gen. 2 is supposed to work in an open baffle, like many of the “Vintage Fullrange Drivers” with lightweight paper membrane e. g. Philips 9710 M 01. Could a ventilation opening A > or even Sd possibly also work as with many housing designs of the Philips 9710 M 01.
I noticed that there is a big gap between the Small Reflex and the Pensil variants and Joan – in volume and in the lowest possible frequency. So there should be a middle ground in this no-man’s country.
And if thanks to Scott, the DIY audio community has even more possibilities with the MA 12 P Gen. 2, that helps everyone.
With kind regards
Stefan
Dear DIY community! And thank you very much for the great echo! There’s something going on!
Hi Dave, hi Scott – I’ve done something! Yes, Scott sends you heaven – Dave had probably misunderstood me, but that’s not a problem. It is of course the Mark Audio Alpair 12 P Gen. 2. I chose it because it has an efficiency of about 92 dB and a resonance frequency of 42 Hz +/- 2 Hz. And one thing is clear to me the 10. 3 goes deeper – but more membrane moves more air.
And if e. g. a DBR housing, a BVR (short horn) housing, a TL housing or a ventilated thin wall reso housing (with 9 – 12 mm birch plywood) ala “Wilimzig” with 40 – 50 liters and a height of max. 65 cm approx. 44 Hz – 50 Hz reached the world is fine.
And since the MA 12 P Gen. 2 is supposed to work in an open baffle, like many of the “Vintage Fullrange Drivers” with lightweight paper membrane e. g. Philips 9710 M 01. Could a ventilation opening A > or even Sd possibly also work as with many housing designs of the Philips 9710 M 01.
I noticed that there is a big gap between the Small Reflex and the Pensil variants and Joan – in volume and in the lowest possible frequency. So there should be a middle ground in this no-man’s country.
And if thanks to Scott, the DIY audio community has even more possibilities with the MA 12 P Gen. 2, that helps everyone.
With kind regards
Stefan
Hopefully his isn't tracking too far OT - but would be curious to know how suited the CHN 110 would be to a BVR? Enjoying my Pensil's, and the driver, but always have the itch to try different cabinet designs, and/or form factor.
Mark Audio Alpair 12 P Gen. Bauvorschläge
Slight correction:
“And since the MA 12 P Gen. 2 is supposed to work well in an open baffle as you hear from some DIY people, such as the “Vintage Fullrange Drivers” with lightweight paper cone e. g. Philips 9710 M 01. Could a ventilation opening A > or the same size as Sd possibly work like this with many housing designs of the Philips 9710 M 01. ”
Does the MA 12 P Gen. 2 like a large ventilation openings in a cabinet?
With kind regards
Stefan
Slight correction:
“And since the MA 12 P Gen. 2 is supposed to work well in an open baffle as you hear from some DIY people, such as the “Vintage Fullrange Drivers” with lightweight paper cone e. g. Philips 9710 M 01. Could a ventilation opening A > or the same size as Sd possibly work like this with many housing designs of the Philips 9710 M 01. ”
Does the MA 12 P Gen. 2 like a large ventilation openings in a cabinet?
With kind regards
Stefan
Mark Audio Alpair 12 P Gen. Building suggestions
Oh my god, what have I done:
Sorry Scott - I don't want to send you to heaven!? Never ever! It should have been " heaven must have send you"
So I have to confess, if I continue using the "Pons translation tool" I may loose my head here. Pons once has a contract with the "Deepl translation tool" what should I say - more than brilliant. Really fantastic, but now these time are gone!
So I'd better use my own brain ;-))
Kind regards
Stefan
Oh my god, what have I done:
Sorry Scott - I don't want to send you to heaven!? Never ever! It should have been " heaven must have send you"
So I have to confess, if I continue using the "Pons translation tool" I may loose my head here. Pons once has a contract with the "Deepl translation tool" what should I say - more than brilliant. Really fantastic, but now these time are gone!
So I'd better use my own brain ;-))
Kind regards
Stefan
Can you give us example of such cabinet (housing). Link, plans, pictures?
Mark Audio Alpair 12 P Gen. suggestions
Hallo Davor,
I found some build suggestions for the Philips 9710 m 01 with big vents here,
especially the "corner vented enclosure" with a 222 qcm vent
tannoy
and at :
Applications Philips 9710 M | PDF | Loudspeaker | Ellipse
the attached drawing should be "3. basreflex kast" as I remember.
Kind regards
Stefan
Hallo Davor,
I found some build suggestions for the Philips 9710 m 01 with big vents here,
especially the "corner vented enclosure" with a 222 qcm vent
tannoy
and at :
Applications Philips 9710 M | PDF | Loudspeaker | Ellipse
the attached drawing should be "3. basreflex kast" as I remember.
Kind regards
Stefan
Attachments
Mark audio 12 p Gen. 2 build suggestions
Wenn Sie A12p auf einem OB verwenden möchten, benötigen Sie Hilfswoofer.
dave
Hallo Dave,
that isn't really planned yet - for a JE open baffle construction like that:
http://1.bp.blogspot.com/-98N37riifRs/T91ZzgcM5lI/AAAAAAAABzo/iqAgS9jKhMU/s1600/OBplan.jpg
I have a Philips 9710 M 01 and a Philips AD 12202 8 Ohm option to be build with transmission / quick release board.
Kind regards
Steve
Wenn Sie A12p auf einem OB verwenden möchten, benötigen Sie Hilfswoofer.
dave
Hallo Dave,
that isn't really planned yet - for a JE open baffle construction like that:
http://1.bp.blogspot.com/-98N37riifRs/T91ZzgcM5lI/AAAAAAAABzo/iqAgS9jKhMU/s1600/OBplan.jpg
I have a Philips 9710 M 01 and a Philips AD 12202 8 Ohm option to be build with transmission / quick release board.
Kind regards
Steve