loudspeaker cabinet 212-8A

[aloa5]

Hello
Has anyone a drawing for a loudspeaker cabinet ? A loudspeaker cabinet for my speakers 212-8A.
The PDF is in the annex.

Sorry for my English

Best Regards
aloa5

[stephane RAME]

Here, a commercial version

http://www.blumenstein-ultra-fi.com/...age=amplifiers
http://www.pinkfishmedia.net/forum/s...0&postcount=79

Stéphane

[aloa5]

Hey,

thank you for the links.

Is it possible, to make a Onken cabinet for this driver.
Here is a link for a drawing.
http://nicolas.davidenko.perso.sfr.f...lancaisse.html

Can I take one of this 3 drawings ?

Best Regards
Xmedia

[stephane RAME]

Hi,
If the parameters of the GPA 212-8A are the same as those of the ALTEC 414, can have a try with "petite Onken"

http://www.asrr.org/biblioteca/Revue...KEN/ONKEN.html

Stéphane

[CONVERGENCE]

Hello
Has anyone a drawing for a loudspeaker cabinet ? A loudspeaker cabinet for my speakers 212-8A.
The PDF is in the annex.

Sorry for my English

Best Regards
aloa5

Here is the original cabinet designed for this speaker.

[aloa5]

@stephan

Hello
from where you have the data for the speakers 414 ?
I think nowhere the same values between the 2 speakers.

@convergence
Thank you for the link, but my favorite cabinet is a onken.


Best Regards
aloa5

[stephane RAME]

Hi,
The data for the speakers 414

http://www.greatplainsaudio.com/altec_thiele_small.html

Thiele-Small Parameters


Model Number: Gpa 212-8A
Free Air resonance (Fs): 51.2 Hz
Equivalent Volume
Compliance (VAS): 3.76 ft.3 (106.4 l)
Total Q (QTS): 0.46
Electrical Q (QES): 0.48
Mechanical Q (QMS): 10.57
Reference
Efficiency (ηO): 2.89%
D.C. Resistance (RE): 5.83 ohms
Peak Linear
Displacement (XMAX): 0.12 in. (3 mm)
Peak Linear Volume
Displacement (VD): 9.8 in.3 (0.16 l)
Effective
Piston Area (SD): 81.7 in.2 (527.1 cm2)


Model Number: ALTEC 414-8C
Xmax (inch) 0.15
Re (ohms) 6.70
Vd (cu. in.) 11.80
Fs (Hz) 30.20
Vas (cu. ft.) 8.13
Ref (%) 2.90
Qts 0.21
Qms 7.40
Qes 0.21
Vid 0.15



Stéphane

[aloa5]

hey stephan

But there are not the same specification, are you sure, that the petit onken cabinet is matching ?

Best Regards
aloa5

[stephane RAME]

Hi,
No, it should be adapted to the new settings.

Stéphane