Need help finding a 18" driver for a sub cabinet

Nay-Sayer · 7th February 2012, 07:34 AM

I recently scored a pair of custom 18" BR cabs with the following internal dimensions:

32" H x 24 1/2" W x 17" D

2 x Ports: 6" diameter by 9" deep

Need to find drivers that will work properly with these cabs. Any help would be greatly appreciated.

Thanks,

Theo

m R g S r · 7th February 2012, 01:26 PM

Quick easy way to sim would be WinSD

Antoinel · 7th February 2012, 03:36 PM

www.mcmelectronics.com has a low-price driver. I used it to replace a JBL 2245H driver; the foam surround of which fell apart. This one has a durable paper accordion surround. A picture of the (small) refrigerator-size cabinet fitting this subwoofer is attached. This website also sells a 21'' driver.

Nay-Sayer · 7th February 2012, 07:11 PM

Quote:

Originally Posted by Antoinel

www.mcmelectronics.com has a low-price driver. I used it to replace a JBL 2245H driver; the foam surround of which fell apart. This one has a durable paper accordion surround. A picture of the (small) refrigerator-size cabinet fitting this subwoofer is attached. This website also sells a 21'' driver.

What's the make and model of this driver?

Thanks,

Theo

Antoinel · 7th February 2012, 08:30 PM

Please find the attached pdf which shows the selection of 18" drivers and their Thiele-Small parameters. I hope it is adequately legible.

Antoinel · 7th February 2012, 08:37 PM

Didn't attach the first time; too much info? Here it is trimmed.

Antoinel · 7th February 2012, 08:44 PM

The Order #s read from the top left to right and then bottom are: 55-2985, (21"), 55-2984 (18"), 55-2954 (18"), and 55-1875 (18"). Regards.

Mikey p · 8th February 2012, 05:27 AM

Not sure what your budget is but the Sigma Pro-18A-2 would fit those cabinets like a glove. The cabinets are 7.5 cu.ft. tuned to 39 hz, the drivers will handle 300 watts with a hi-pass filter at 35 hz.

Eminence Sigma Pro-18A-2 18" Cast Frame Driver 290-427

bentoronto · 8th February 2012, 08:50 AM

Nobody says you have to install an 18 inch driver in the hole. Why do you want to be stuck looking for a suitable 18 inch driver when you have a vast choice of drivers doing the same thing (and prolly better) at 15 inches?

A box that size sure makes a good sealed enclosure!

Go for quality.

Ben

mdocod · 11th February 2012, 09:21 AM

Theo,

What is the budget you are looking to stay in?

That box size and tuning should work with a lot of 18" drivers out there. The ones you choose really depend on what performance level and price point you are looking for. I am particularly fond of RCF and B&C brand drivers, but they aren't all that cheap.

Eric

7th February 2012, 07:34 AM	#1
Nay-Sayer diyAudio Member Join Date: Jul 2009	Need help finding a 18" driver for a sub cabinet I recently scored a pair of custom 18" BR cabs with the following internal dimensions: 32" H x 24 1/2" W x 17" D 2 x Ports: 6" diameter by 9" deep Need to find drivers that will work properly with these cabs. Any help would be greatly appreciated. Thanks, Theo

8th February 2012, 08:50 AM	#9
bentoronto diyAudio Member Join Date: Jan 2008 Location: Toronto and Delray Beach, FL	Nobody says you have to install an 18 inch driver in the hole. Why do you want to be stuck looking for a suitable 18 inch driver when you have a vast choice of drivers doing the same thing (and prolly better) at 15 inches? A box that size sure makes a good sealed enclosure! Go for quality. Ben __________________ Dennesen ESL tweets, Dayton-Wright ESL (110-3200Hz), Klipschorn mixed-bass woofer w/param. EQ plus 1954 AR-1W or giant OB HiFi construction since 1956

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7th February 2012, 01:26 PM	#2
m R g S r diyAudio Member Join Date: Jan 2011	Quick easy way to sim would be WinSD

7th February 2012, 08:30 PM	#5
Antoinel diyAudio Member Join Date: Jan 2012 Location: Pennsylvania	Please find the attached pdf which shows the selection of 18" drivers and their Thiele-Small parameters. I hope it is adequately legible.

7th February 2012, 08:44 PM	#7
Antoinel diyAudio Member Join Date: Jan 2012 Location: Pennsylvania	The Order #s read from the top left to right and then bottom are: 55-2985, (21"), 55-2984 (18"), 55-2954 (18"), and 55-1875 (18"). Regards.

8th February 2012, 05:27 AM	#8
Mikey p diyAudio Member Join Date: Feb 2004 Location: Sask. Canada	Not sure what your budget is but the Sigma Pro-18A-2 would fit those cabinets like a glove. The cabinets are 7.5 cu.ft. tuned to 39 hz, the drivers will handle 300 watts with a hi-pass filter at 35 hz. Eminence Sigma Pro-18A-2 18" Cast Frame Driver 290-427

11th February 2012, 09:21 AM	#10
mdocod diyAudio Member Join Date: Dec 2011 Location: Black Forest, CO	Theo, What is the budget you are looking to stay in? That box size and tuning should work with a lot of 18" drivers out there. The ones you choose really depend on what performance level and price point you are looking for. I am particularly fond of RCF and B&C brand drivers, but they aren't all that cheap. Eric

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