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Old 23rd August 2012, 05:22 PM   #1
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Default SS15 or Tham 15?

Hi Guys

Have been looking at building 8 tapped horns, drivers i have are B&C PZB40's

Have simulated these in horn resp and must admit im impressed with the results if loaded in the Tham15

But just wondering how these drivers would fair in the SS15 ? found a few details , but for the life of me i cant work out how to plot it horn resp

Be greatfull if someone could do this for me

specs are ...

Specifications
Nominal Diameter 380 mm (15 in)
Nominal Impedance 8
Ω

Minumum Impedance 6.6
Ω

Power Handling
(50 500 Hz)
Nominal
1 700 W
Continuous Program
2 1400 W
Sensitivity (1W/1m)
3 97 dB
Frequency Range 40-2000 Hz
Voice Coil Diameter 100 mm (4 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 21 mm (13/16 in)
Magnetic Gap Depth 9 mm (19/32 in)
Flux Density 1.15 T

Also available in 4
Ω, data upon request

Thiele & Small Parameters
4

Fs 39 Hz
Re 5.3
Ω

Qes 0.3
Qms 7.4
Qts 0.29
Vas 112 dm
3 (4 ft3)
Sd 855 cm
2 (132.5 in2)

η
0 2.9%
X max 8 mm
X var 6.5 mm
Mms 123 g
Bl 24.3 Tm

Le 2.4 mH
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Old 24th August 2012, 06:32 AM   #2
Djim is offline Djim  Netherlands
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Location: 'Ollanda
Hi JohnnyPyro,

From the B&C database, these drivers have an Fs = 43Hz and the Xvar or Xlim are not known. The driver can be used in a SS15 and in a Tham .


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Old 24th August 2012, 08:35 AM   #3
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Thanks Djim .. i think i may build both and do an A/B test
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Old 24th August 2012, 10:16 PM   #4
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Location: Sweden
The SS15 is a seriously nice and well balanced design, all be it in the good company of the other nice ones floating around here, I look forward to a comparison between the two that has caught you eye, no matter the outcome, yes seriously

PS. Jbell - you're toast (and I do emphasize the "" )

Good luck with the builds, and thanks for sharing.

Best reg's // martnisson
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Old 25th August 2012, 01:52 AM   #5
jbell is offline jbell  United States
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Location: .
Quote:
Originally Posted by martinsson View Post
The SS15 is a seriously nice and well balanced design, all be it in the good company of the other nice ones floating around here, I look forward to a comparison between the two that has caught you eye, no matter the outcome, yes seriously

PS. Jbell - you're toast (and I do emphasize the "" )

Good luck with the builds, and thanks for sharing.

Best reg's // martnisson
And you can bring the 'jam' for my toast.

Game on friend !!!

This is seriously one of the more respectful and knowledgeable sites around, and part of the reason I frequent here.
I too look forward to the builds.

Last edited by jbell; 25th August 2012 at 01:59 AM.
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Old 25th August 2012, 03:24 AM   #6
kctess5 is offline kctess5  United States
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Location: California
This should be fun to watch

JohnnyPyro do you have a passable measurement setup so we can get some data?
Keep in mind that the SS15 models with higher output but the Tham15 is about 2/3 the size. 9.2 ft3 vs 6.6ft3
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Old 25th August 2012, 04:50 AM   #7
NEO Dan is offline NEO Dan  United States
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Location: N.E. Ohio
Quote:
Originally Posted by martinsson View Post
PS. Jbell - you're toast
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Regards,
Dan
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Old 25th August 2012, 09:14 AM   #8
jsk is offline jsk
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@johnnypyro

Build an ss15, and compare against one of my tham15's. May save you some build time / costs.

Joe
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Old 26th August 2012, 07:00 PM   #9
NEO Dan is offline NEO Dan  United States
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Dan
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Old 26th August 2012, 07:13 PM   #10
jsk is offline jsk
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TH one slice challenge?
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