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Multi-Way Conventional loudspeakers with crossovers

Jbl 4410
Jbl 4410
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Old 4th September 2007, 10:28 AM   #1
Hyldal is offline Hyldal  Denmark
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Default Jbl 4410

I hear this old speaker lately, and there were some things in the bas that impressed me and I feel is difficult to find in modern speakers. The bas range was very transparent.

Does anybody have the TS-parameters on the woofer?
Does anybody know the type number on the woofer?
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Old 4th September 2007, 10:52 AM   #2
EspenE is offline EspenE  Norway
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It's a JBL127H-1 12" unit.

T/S-parameters here: http://www.jblproservice.com/pdf/Thi...Parameters.pdf
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Old 4th September 2007, 03:02 PM   #3
Hyldal is offline Hyldal  Denmark
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Sorry EspenE the driver is only a 8 or 10", and the other drivers are a 5" and a 25mm titanium dome.
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Old 4th September 2007, 03:41 PM   #4
chops is offline chops  United States
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The 4410 uses a 10" driver.

http://www.jblpro.com/pub/obsolete/4410.pdf
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Old 4th September 2007, 08:30 PM   #5
EspenE is offline EspenE  Norway
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Quote:
Originally posted by Hyldal
Sorry EspenE the driver is only a 8 or 10", and the other drivers are a 5" and a 25mm titanium dome.

You are both right, of course. The 127H-1 is a 10" driver. Slip of the finger.

The other drivers are a 104H-2 and a 035tiA titanium dome. The latter was replaced with the 052ti in 1993 or thereabouts.
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Old 5th September 2007, 03:03 PM   #6
Hyldal is offline Hyldal  Denmark
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Ok, EspenE thank you, do you know where to find the TS parameters on the woofer?
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Old 5th September 2007, 04:27 PM   #7
Brett is offline Brett
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Quote:
Originally posted by Hyldal
Ok, EspenE thank you, do you know where to find the TS parameters on the woofer?
See post 2 this thread.
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Old 6th September 2007, 10:13 AM   #8
Hyldal is offline Hyldal  Denmark
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I dont know if it is just me, but I dont se this woofer on JBL´s list of vintage woofers.
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Old 6th September 2007, 07:27 PM   #9
EspenE is offline EspenE  Norway
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Here are the parameters for the 127H-1:

Fs = 31 Hz
Qts = .357
Qms = 8.077
Qes = .3735
No = .87%
SPL = 91.58 dB
Cms = 6.8E-4 M/N
Mms = 38g
Bl = 11.07
Le = .76 mH
Re = 6.1 ohms
Vas = 112 l
Sd = 320 cm2

EspenE
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