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Old 5th February 2006, 06:09 AM   #1
lpd is offline lpd  Canada
diyAudio Member
Join Date: Nov 2003
Location: BC
Default Bass Horn Question

I have a pair of Bass Horns I picked up for free from a lady who wanted them removed from her home. They seem to be decent build quality, but need to be cosmetically refreshed. Drivers used in them are Philips 12" drivers with foam surrounds, and one of them is acting problematic in the horn as the foam surround is rotting and the cone pushes too far forward thus vibrating on the baffle. I am looking for ideas on replacement drivers, but have little experience with cabiney specs ect.

Here are some measurements:

Internal measurements are 16" deep 24" high and 11" deep
Horn flare is 17.5" wide and 18" high and 11" deep
Inside measurement of horn flare is 12" high and 6" wide
The port on the top is 8" wide 2.5" high and 11.5" deep (it port from either side of the horn inside the cab.

Any ideas for a decent 12' speaker for sub bass?
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Old 5th February 2006, 07:39 AM   #2
AndrewT is offline AndrewT  Scotland
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Join Date: Jul 2004
Location: Scottish Borders
I think you have a mid horn, judging by the length and flare rate of the front horn.
Compare this to a Tannoy Westminster.
The front horn looks a little similar and Tannoy claim it cuts off at about 200Hz. The rear horn then takes over all the way down to 18Hz but needs an enormous 530litre cabinet to achieve this.
No ideas about a replacement.
regards Andrew T.
Sent from my desktop computer using a keyboard
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Old 5th February 2006, 04:06 PM   #3
lpd is offline lpd  Canada
diyAudio Member
Join Date: Nov 2003
Location: BC
The Westminster uses a 15" driver. Mine uses a 12" one. I wonder what effect the difference in driver size will have on the cabinet size? They do look similiar in design, but not cosmetics thats for sure
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Old 6th February 2006, 07:18 PM   #4
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Join Date: Jan 2004
Location: Near Vancouver
Something like this Selenium might just drop in. Can you measure the centre to centre on the mounting holes?
planet10 needs your help:
Let's help Ruth and Dave
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