Combine 2 Speakers to Make 1 Enclosure?

BR549 · 10:36 PM

Hello DIY Audio. I'm seeking opinions / advice on this DIY speaker project.

I have a pair of old Criterion 100B speakers that I really like - except its bass could be better. I read on line HERE that their 10" woofers have nice bass if used in larger 3 to 4 cu. ft. enclosures - port tuned to ~ 35Hz.

So I'm thinking if I cut a large hole in the bottom of the 100B speakers and the same size hole in the top of some larger cheap speakers, I could combine them. Remove the drivers from the larger speakers and cover the holes with a board that's been ported. Then the 100B speakers could use its enclosure space plus that of the larger speakers.

Opinions? Advice? You thing this would work OK? Thanks!

Cal Weldon · 18th July 2010, 10:36 PM

Sure it will work. Might be the ugliest speaker on the block but it will work if they have their numbers correct.

BR549 · 18th July 2010, 11:14 PM

Yep, that's what I'm after - the ugliest speakers on the block... and these Criterions are ugly to begin with... lol.

I just can't get over how much I like their sound - otherwise I wouldn't consider improving them.

Thanks for your help.

Quote:

Originally Posted by Cal Weldon

Sure it will work. Might be the ugliest speaker on the block but it will work if they have their numbers correct.

planet10 · 19th July 2010, 01:43 AM

Got a picture of your Criterion... some of them have some pretty nice Coral drivers (sometimes too many of them).

dave

BR549 · 03:05 AM

The grill doesn't seem to be removable. The back panel has screws for removal, but I haven't looked yet. I was last listening with them up side down.

planet10 · 19th July 2010, 03:12 AM

All the criterions i had, had removable grills, but not removable backs... time to get the screw gun out. May signal that you have really old ones. (Or not)

dave

BR549 · 19th July 2010, 04:36 AM

My guess is early 70's - predating removable grills for many speakers. I doubt the drivers are of much acclaim - not much interest in identifying them. But I may replace the grill cloth some day and post a revealing pic.

I found this dial on the back that adjusts the tweeters useful - along with the equalizer on my receiver.

18th July 2010, 10:27 PM	#1
BR549 diyAudio Member Join Date: Aug 2007	Combine 2 Speakers to Make 1 Enclosure? Hello DIY Audio. I'm seeking opinions / advice on this DIY speaker project. I have a pair of old Criterion 100B speakers that I really like - except its bass could be better. I read on line HERE that their 10" woofers have nice bass if used in larger 3 to 4 cu. ft. enclosures - port tuned to ~ 35Hz. So I'm thinking if I cut a large hole in the bottom of the 100B speakers and the same size hole in the top of some larger cheap speakers, I could combine them. Remove the drivers from the larger speakers and cover the holes with a board that's been ported. Then the 100B speakers could use its enclosure space plus that of the larger speakers. Opinions? Advice? You thing this would work OK? Thanks! Last edited by BR549; 18th July 2010 at 10:36 PM.

18th July 2010, 10:36 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Sure it will work. Might be the ugliest speaker on the block but it will work if they have their numbers correct. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

19th July 2010, 01:43 AM	#4
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Got a picture of your Criterion... some of them have some pretty nice Coral drivers (sometimes too many of them). dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

19th July 2010, 03:02 AM	#5
BR549 diyAudio Member Join Date: Aug 2007	The grill doesn't seem to be removable. The back panel has screws for removal, but I haven't looked yet. I was last listening with them up side down. Last edited by BR549; 19th July 2010 at 03:05 AM.

19th July 2010, 03:12 AM	#6
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	All the criterions i had, had removable grills, but not removable backs... time to get the screw gun out. May signal that you have really old ones. (Or not) dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA


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19th July 2010, 04:36 AM	#7
BR549 diyAudio Member Join Date: Aug 2007	My guess is early 70's - predating removable grills for many speakers. I doubt the drivers are of much acclaim - not much interest in identifying them. But I may replace the grill cloth some day and post a revealing pic. I found this dial on the back that adjusts the tweeters useful - along with the equalizer on my receiver.

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