dimensions / plans / blueprints for 4641

[Eaulive]

Hello.
Does anybody have the building plans for the 4641 cabinet? The datasheet say 225l tuned to 25 Hz but I would like to build it as close possible as the originals, especially the port and inner bracings.

:)

[Don Mascali]

I have both the 4641 and the 4645C. They are the same cabinet and differ only by the driver installed. There is some information on 4645C on the Forum that provides measurements and some construction details that were provided by members including my self.
I will attempt to answer any questions you have after you read that info.
Good luck with your project they are incredible subs.

Here are a couple of JBL links;

http://www.jblpro.com/pub/cinema/4641.pdf

http://www.jblpro.com/catalog/general/ProductFamily.aspx?FId=35&MId=1

[Don Mascali]

I finally found the thread.

http://www.audioheritage.org/vbulletin/showthread.php?4238-sub-4645c&p=38684&highlight=#post38684

[Eaulive]

Very nice, Thanks! :applaud:

[Lee in Montreal]

Hey Eaulive. Why not build a 4688 with your newly aquired 2241? They will do well with the 4520s :D

[Eaulive]

Hey Eaulive. Why not build a 4688 with your newly aquired 2241? They will do well with the 4520s :D


mmmmh, I don't know, if it would be that good, they would still make it.
I never like those designs, it makes me think of a "one note wonder" boom box. Maybe I'm wrong. :dont-know:

Besides, this muther is ginormous!

[Lee in Montreal]

It depends on what you need. If you only want 25 to 50Hz to help the pair of 4520 scoops, then I would go with a TCB. If you want stand alone bass bins that cover 30 to 200 Hz, the sure, the 4641 would be better. BTW I can lend you my 1800 Gti to test against your 2241. They share the same basket and motor. I suspect the 1800Gti to be less musical but more bass heavy.

GTI 1800
Mechanical parameters
Fs = 30hz
Qms = 6,77
Vas = 362,46 Liters
Cms = 0,158 mm/N
Mms = 178,141 grams
Rms = 4,96 kg/sec
Xmax = 7,62 mm
Sd = 1271 sq.cm
Dia = 40,2 cm

Electrical parameters
Qes = 0,456
Re = 2,5 ohms
Le = 1 mh
Z = 4 ohms
BL = 13,6 N/A
Pe = 600 Watts

Kombination parameters
Qts = 0,43
n* = 2,07%
Sens = 96,3 (1 Watt)

[Eaulive]

I plan to make a good, musical and accurate sub for music and movies, probably to coupled with more living room friendly speakers than the 4520 are :D

[peteracing]

Eaulive, do you really think you need more bass!? ( Eaulive demoed me his 4520's driven with his Crown'sssssss) and my eardrums foams suspensions (rotten) clearly need to be changed now :bouncy:...
Thanks for the demo, fantastic settup :applaud::applaud::applaud:!.

[Eaulive]

Eaulive, do you really think you need more bass!? ( Eaulive demoed me his 4520's driven with his Crown'sssssss) and my eardrums foams suspensions (rotten) clearly need to be changed now :bouncy:...
Thanks for the demo, fantastic settup :applaud::applaud::applaud:!.

So you liked it hey? the ringing in my ears finally subsided a few hours later, I'm not used to this anymore :D

[Eaulive]

I finally found the thread.

http://www.audioheritage.org/vbulletin/showthread.php?4238-sub-4645c&p=38684&highlight=#post38684

Thanks Don, I actually have a question here: http://www.audioheritage.org/vbulletin/showthread.php?4238-sub-4645c&p=324570&viewfull=1#post324570