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BEST cone driver for specific conical horn?

Posted by PK (A) on January 26, 2009 at 10:32:28

Hi,

I am currently using the conical horns in the picture above. I would really appreciate your help finding the BEST cone horn driver for this specific horn! The driver/horn combo shall cover from 160-1000 Hz. I use (steep slope) ACTIVE filters, so the driver/horn combo does not have to sound well far below and above this range. Below and above this mid horn I use horns too.

Here are the specs of the mid horn:

Throat size = 81 cm^2 (or 12.55 sq inches)
Mouth size = 2754.16 cm^2 (or 426.9 sq inches)
Length [on axis] = 61.5 cm (or 24.2 inches)

So far I have used the 8” Fane Studio 8M, which to my ears sounds good. However, inspired by earlier comment on the AA from especially John Sheerin and Bill Fitzmaurice (many thanks!), I cannot help thinking that drivers with more ideal “horn specs” may provide better results.

I am after a very CLEAN and CLEAR sound where especially human voices must be reproduced naturally!

At the moment I have three candidate drivers: The new 6.5” from Acoustic Elegance, the 6.5” Beyma 605 Nd, and the apparently super powerful 8” Ciare 8.50 NdMR. Based on their specs, all three drivers seem more suited for horn loading than the Fane, that I’m currently using (all three drivers have higher Fs, lower Qt, and lower mass, than the Fane Studio 8M). The parameters of the three candidate drivers are listed below (the Beyma via the link):

What would be the BEST driver in this specific horn in the desired range (160-1000 Hz)? One of the candidate drivers below, or….?

Thanks a lot!

Best regards
Peter

6.5” driver from Acoustic Elegance:

Fs: 71hz
Qms: 6.7
Vas: 10.74L
Cms: .5mm/N
Mms: 10.01g
Rms: .67kg
Xmax: 3.5mm
Xmech: 7mm
Sd: 123sqcm
Qes: .24
Re: 5.9
Le: .081mH
Z: 8ohm
Bl: 10.4Tm
Pe: 100W
Qts: .235
1wspl: 94dB
2.83v: 95.3dB


8” Ciare 8.50 Nd MR:

Fs=123 Hz
Sd=240 cm^2
Re=5.84 Ohm
Le=0.5 mH
Sens=100 dB/1 watt
Pmax=100 Watt
Vas=6.3 liter
Qts=0.22
Qes=0.22
Qms=8.88
Mms=19.71 grams
BL=20.75
Flux density=1.75
Xmax=1.5mm
Total mass=2.7 kg

• Beyma 605 ND   (Open in New Window)

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