Whats a aperiodically-coupled bass-reflex box? - Page 3 - diyAudio
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Old 18th November 2012, 10:01 PM   #21
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Originally Posted by planet10 View Post
FE126 really needs a horn. If i eas doing an aperiodic box for it, it would reach 150-200Hz.

dave

Well from what the graph he sent me it is flat lined intill 150hz and then dips down. I would be adding a sub woofer at 200hz. So taking care of that problem is solved. The fe126en is flat lined from 150 hz on up. We will see it works? There is a first time for everything right. jm

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Old 18th November 2012, 10:57 PM   #22
Nanook is offline Nanook  Canada
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Default Bill Perkins and his speakers...

I actually had the opportunity to buy a pair several years ago and didn't. My loss.

Is Bill still active in loudspeaker design and construction?
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Old 18th November 2012, 11:04 PM   #23
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Is Bill still active in loudspeaker design and construction?
Not really,

dave
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Old 18th November 2012, 11:05 PM   #24
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Well from what the graph he sent me it is flat lined intill 150hz and then dips down. I would be adding a sub woofer at 200hz. So taking care of that problem is solved. The fe126en is flat lined from 150 hz on up. We will see it works? There is a first time for everything right. jm
FE126 used as midtweeter like this should be good.

dave
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Old 19th November 2012, 01:18 AM   #25
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FE126 used as midtweeter like this should be good.

dave

Cool thanks dave. Jm
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Old 19th November 2012, 04:16 AM   #26
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The Dynaco A25 had an aperiodic enclosure that worked very well, particularly given their small size & low cost. Supposedly, they were hand-stuffed to optimize performance.
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Old 19th November 2012, 06:02 AM   #27
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Having parted out dozens of pairs i saw no evidence of hand tweaking,

Some pictures

dave
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Old 19th November 2012, 12:40 PM   #28
IG81 is offline IG81  Canada
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Has anyone here ever tried the MAPD loading and compared it to a straight-up sealed box or aperiodic enclosure with the same driver? Seems like this is similar to what is done in the Dynaco A35, except for different volume ratios between the chambers.

IG
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Old 19th November 2012, 02:59 PM   #29
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Quote:
Originally Posted by planet10 View Post
Having parted out dozens of pairs i saw no evidence of hand tweaking,

Some pictures

dave
Wow Dave good to know . I hope I don't have to tweek mine boxes Jm
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Old 19th November 2012, 03:02 PM   #30
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Has anyone here ever tried the MAPD loading and compared it to a straight-up sealed box or aperiodic enclosure with the same driver? Seems like this is similar to what is done in the Dynaco A35, except for different volume ratios between the chambers.

IG

Sounds like a good idea. I would like to know as well with a side by side testing box types and how they can make or brake a drivers performance. Jm
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