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Old 1st December 2005, 03:45 AM   #1
jwb009 is offline jwb009  United States
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Default fe167e enclosure?

Looking to build my first set of speakers, and I've figured I'd go with the fe167e as the driver. Now, I really like the look of the JTM/2's from Carolina Audio. I'm curious as to how they setup the 3 folded TL design. Is there any diagrams available for this type of design?

Alternativey, could I simply make it a BR design, with only an empty box and single port?

Thanks for the help.
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Old 1st December 2005, 02:09 PM   #2
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Smile 167e

http://www.zillaspeak.com/ZillaSpeak...tex168-167.asp

People have built both 15 and 21 L boxes with good results using the 167e.

Others have built some neat pipes.

Peace,
Godzilla
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Old 1st December 2005, 07:01 PM   #3
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Default Re: fe167e enclosure?

Quote:
Originally posted by jwb009
could I simply make it a BR design, with only an empty box and single port?
I'd recommend Bob Brines' ML-TL. Works really well with these (and looks like a BR in the sense that it is a box with a port)

dave
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Old 1st December 2005, 07:23 PM   #4
jwb009 is offline jwb009  United States
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I'm assuming Bob Brines' version is this?:

http://www.geocities.com/rbrines1/im...sals/FE164.gif

If so, will it become a problem if I change the dimensions so it is much less deep and much wider, as in the Carolina Audio. I'm thinking the diagonal piece inside wouldn't work then, am I correct? Sorry for the questions, I'm new to all this. Thanks!
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Old 1st December 2005, 07:30 PM   #5
doorman is offline doorman  Canada
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jwb009: The pic you've posted is not BB Ft 1600's, which is essentially a tube with a slot port at the bottom. What Dave said!
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Old 1st December 2005, 07:36 PM   #6
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I can't find the drawing he had up on his site.

45" internal height, driver down 11", with a 9" wide, 1.5" tall, 4.25" deep slot port at the bottom. Cross-section is 81 in^2.

He has detailed plans with all his tricks available for sale (FT1600)

dave
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Old 1st December 2005, 11:09 PM   #7
jwb009 is offline jwb009  United States
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Looks easy enough. So with a cross-section of 81 in^2, does it matter how you get those 81 inches, ie is 9x9 ideal, or will something like 5 x 16.5 work as well?

Question 2: What is the purpose of the 3 cross members in this picture? Is it simply for stability?

http://www.geocities.com/rbrines1/Pa...ard_Detail.jpg
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Old 1st December 2005, 11:13 PM   #8
doorman is offline doorman  Canada
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The 3 "picture frames" you see, are bracing
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Old 1st December 2005, 11:18 PM   #9
SCD is offline SCD  Canada
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This is a tried and functional design.
Has any one tried anything else with this driver. I made the FT1600 and I love the sound and was thinking about a bipole or a bipole TQWP. I would love to see some discussion on that. It seems the CSS drivers are getting all the attention right now.

How about some discussion.
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Old 2nd December 2005, 02:32 AM   #10
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Quote:
Originally posted by jwb009
Looks easy enough. So with a cross-section of 81 in^2, does it matter how you get those 81 inches, ie is 9x9 ideal, or will something like 5 x 16.5 work as well?
In theory a ratio of width to depth that is an irrational number is best. Say we take the golden ratio 1:1.618... then internal dimensions would be 7" x 11 5/8"...

Quote:
What is the purpose of the 3 cross members in this picture? Is it simply for stability?
Those are shelf bracing... IMO braces running up & down would be more effective (like in Scott's)

dave
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