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Ciare ND 12.3 with modified Pi mid horn? [message #53335]

Wed, 25 March 2009 12:39

Norris Wilson
Messages: 361
Registered: May 2009

Grand Master

What would be the possibilty of successfully using the Ciare ND 12.3 midwoofer with a slightly modified Pi mid horn to acheive a bottom rolloff starting around 200Hz? And rolling them off up top around where the JBL 2226 is in the Four Pi at 1.3kHz?

Thanks for any input regarding this possibility, and Wayne for the Ciare measurements.

Norris
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Ciare ND 12.3 measurements as follows:

RE = 6.1971 ohms

FS = 56.9656 Hz

QES = 0.2183

QMS = 10.0352

QTS = 0.2137

ZMAX = 291.0796 ohms

LE = 1.1372 mH

VAS = 58.9754 L

Diam = 261.9375 mm

Sd = 53887.1512

BL = 23.5536

Cms = 142.9669 um/N

Kms = 6994.625 N/m

Mms = 54.5984 g

Sens = 98.7321 db@1W/1m

Eff = 4.6925 %

Rms = 1.9474 ohms

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Re: Ciare ND 12.3 with modified Pi mid horn? [message #53336 is a reply to message #53335]

Wed, 25 March 2009 14:18

Wayne Parham
Messages: 18784
Registered: January 2001

Illuminati (33rd Degree)

If you get the driver, we can measure it on the horn. The bottom end can be modeled with Hornresp, but the upper end is largely determined by the way the cone behaves at HF. This cannot be simulated with a pistonic model, so we'll need measurements to see how it acts.

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