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SpeakerTalk
This forum has been set up to facilitate discussion of 1970s KEF speakers and drive units. The owner of the Forum has no connection with KEF Audio.
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proffski
Über Contributor 1000+
Joined: 22 Aug 2003
Posts: 1297
Location: Tewkesbury UK
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 Posted: Tue May 12, 2015 9:23 am Post subject: |
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Try it if you have the resources and the time.
I did something similar a few decades ago, but the bass driver was one of the B200 family, in a reflex enclosure and the cone mass loaded in order to bring down the fs AND efficiency!!! The cabinets were lead and thick bitumen pad lined as well as braced and weighed a lot! The knuckle test just produced a dull thud.
Some pictures in the link below, click on individual snap for information.
http://s891.photobucket.com/user/AndyGoloskof/library/?start=all#/user/AndyGoloskof/library/?start=all&page=2&_suid=143141876747008475521298622191
_________________
I contend that for a nation to try to tax itself into prosperity is like a
man standing in a bucket and trying to lift himself up by the handle.
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DarrenHW
Junior Contributor 10+
Joined: 30 Apr 2015
Posts: 18
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| Posted: Tue May 12, 2015 10:37 am Post subject: |
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That is exactly what I'm thinking of Proff, thanks for the photo's, nice work btw! I think you've given me all the encouragement I need, off to source some BB PLY. Thanks for sharing  . |
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