B&C 18ps100 vs PD.186 vs JBL 2241H for hifi? - diyAudio
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Old 18th May 2012, 07:38 PM   #1
pk is offline pk  Denmark
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Default B&C 18ps100 vs PD.186 vs JBL 2241H for hifi?

Hi,

I need a pair of 18" woofers (one per side) to cover up to 200 Hz for my hifi rig (not PA). I specificly consider the following drivers, since I may have a chance to get them second-hand at a good price.

* B&C 18PS100
* Precision Devices PD.186
* JBL 2241H


http://www.bcspeakers.com/CPD/produc...?id=0000000054
http://www.precision-devices.com/asp...ds/super/3.pdf

The chosen driver will be mounted in a 220-280 liter (app. 8-10cf) vented box.

Preferably, the driver should also sound refined at low volumes

Which woofer would be the best choice?

I would be especially pleased to hear from people who have direct experience with some of the drivers!

Thanks a lot!

Best regards
Peter
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File Type: pdf JBL 2241.pdf (163.9 KB, 40 views)
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Old 21st May 2012, 11:44 AM   #2
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Bump

I am also interested in an opinion on this.
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Old 21st May 2012, 12:13 PM   #3
pk is offline pk  Denmark
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Additional options I have considered are:

* Fane Colossus 18XB, and the
* Celestion FTR18 4080F

http://www.fane-acoustics.com/downlo...18XB_Specs.pdf

Celestion FTR18-4080F Speaker (8 Ohm) at zZounds

Thanks!

Best regards
Peter
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Old 21st May 2012, 12:29 PM   #4
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I have the 18PS100 in a 7 cu ft vented box. I really like it, but have not listened to the other drivers so can't compare. It is driven by an O Audio 300 watt plate amp. It will put out enough SPL that it feels like my head is being squished. It will shake the floor also. It's good for a musical subwoofer, but home theater folks may want it to deeper. Two of these would fill a really large room with deep bass.
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Old 21st May 2012, 02:52 PM   #5
pk is offline pk  Denmark
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Hi dirkwright,

Thanks a lot for the input!

Best regards
Peter

Quote:
Originally Posted by dirkwright View Post
I have the 18PS100 in a 7 cu ft vented box. I really like it, but have not listened to the other drivers so can't compare. It is driven by an O Audio 300 watt plate amp. It will put out enough SPL that it feels like my head is being squished. It will shake the floor also. It's good for a musical subwoofer, but home theater folks may want it to deeper. Two of these would fill a really large room with deep bass.
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Old 21st May 2012, 02:56 PM   #6
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I'm strongly in favor of high sensitivity/low distortion low frequency drivers, since any distortion produced in those frequencies is readily heard. If the low frequency driver has high sensitivity, then not only does it move less for the same SPL, but the amp has to produce far less power. Both of these lead to lower distortion.
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Old 21st May 2012, 03:02 PM   #7
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Here's a couple photos of what I built. That's a 42" TV to give you an idea of the size of this box.
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File Type: jpg L1020248 - sm.JPG (434.9 KB, 446 views)
File Type: jpg L1020123 - sm.JPG (651.4 KB, 429 views)
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Old 21st May 2012, 09:02 PM   #8
pk is offline pk  Denmark
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Hi again dirkwright.

I completely agree with your preferences. Actually, until recently I had the bass horns displayed below - each mounted with double 15" pro woofers. However, I am now forced to downsize the setup due a move

Your sub look cool!

Best regards
Peter

Quote:
Originally Posted by dirkwright View Post
I'm strongly in favor of high sensitivity/low distortion low frequency drivers, since any distortion produced in those frequencies is readily heard. If the low frequency driver has high sensitivity, then not only does it move less for the same SPL, but the amp has to produce far less power. Both of these lead to lower distortion.
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File Type: jpg Horn rig overview Feb 2010.JPG (19.3 KB, 401 views)
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Old 21st May 2012, 09:21 PM   #9
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Thanks. Yeah, horn subs are just insanely huge. I had to assure my wife that this 18" subwoofer wasn't going to be so huge that it would be a problem and that it could double as a table or TV stand. I also made sure it was pretty. It's made from 3/4" mdf with another 3/4" birch ply laminated over it. So, I built a box out of 3/4" mdf first, and then covered most of the sides with a layer of 3/4" birch. The vents open at the bottom.
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Old 22nd May 2012, 02:45 PM   #10
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What is an adequate f3 in-room target for music-reproduction? (i.e. probably around f10-13 in simulators like Unibox)
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