| FE127E Design [message #20989] |
Tue, 07 June 2005 10:28  |
jackmoai
Messages: 5
Registered: May 2009
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Esquire |
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I've just done small BR cabinets for my new speakers, waiting for them to break-in.
A bit disappointed til now, but i know i have to WAIT.I did these cabinets with "rounded" faces, it is supposed to reduce the impact of standing waves (?). So I'm looking very hard for TQWT or BLH plans for my next design, but it seems that these drivers are not very famous among diyers... I made a few designs with MJKing sheets,TQWT, flat SPL, but not sure it WILL work... Something to recommend ?
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| Re: FE127E Design [message #20992 is a reply to message #20990] |
Tue, 07 June 2005 12:14  |
jackmoai
Messages: 5
Registered: May 2009
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Esquire |
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Uhhh ! Is it a joke ? How can a driver with Fs=70hz be used as a subwoofer driver ? I've seen a few designs with this driver, but the main question alwayw was : How to get MORE bass ? Here we come with TQWT i guess... TQTW plans anybody ?
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| Re: FE127E Design [message #20995 is a reply to message #20994] |
Tue, 07 June 2005 15:31 |
akhilesh
Messages: 1275
Registered: May 2009
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Illuminati (3rd Degree) |
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Yeah, i'll be happy to give you suggestions.
Here are a few questions first that will help us all understand your situation better:How did you build your BR boxes. Did you tune it using some CAD software/ How is the construction? Did you build them yourself? Are they properly sealed except fo the vent? What kind of carpeting did you use inside? These may seem like a lot of questions, but will help us (at least me) provide some sensible suggestions.
-akhilesh
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| Re: FE127E Design [message #20996 is a reply to message #20995] |
Tue, 07 June 2005 16:22 |
jackmoai
Messages: 5
Registered: May 2009
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Esquire |
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Thanks for your prompt answers. Yes, i build my BR boxes myself. I used as reference the small BR fostex recommended enclosure, keeeping the volume(9L) and cross sectional area, but i "customized" them with rounded walls (Sonus Faber style !).Hard time to do this, but in fact i'm quite satisfied by the AESTHETIC result. Then i tuned the port using Bassbox software, around 70-75Hz. I used MDF 19mm with 3 coats of blackson (car damping painting). Plus fiber layer i'm still trying to adjust. At that time, i had never heard of MJ KIng, Bob Brines or TQWT... That why i'm trying to get a better result, using modern designing theory ! 55Hz would be nice !
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| Re: FE127E Design [message #20998 is a reply to message #20989] |
Wed, 08 June 2005 09:44 |
paba
Messages: 21
Registered: May 2009
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Chancellor |
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Did you build the Fostex double bass reflex or the fostex standard small bass reflex cabinet? looking at the specs of the double bass reflex cabinet it should give you some 55HZ content. good luck
paba
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| Re: FE127E Design-- MLTL [message #21039 is a reply to message #20989] |
Sat, 02 July 2005 17:07 |
lon
Messages: 760
Registered: May 2009
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Illuminati (2nd Degree) |
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I have a preference for the MLTL and Fostex FE127e based on the numbers given
by GM at the full range driver forum.
This is my best build to date. The MLTL is wider and more shallow. The driver is
mounted 8 in. down from the top and a port tube extends out the bottom about 6 inches.
The MLTL plan calls for a 45d baffle at the port tub end (bottom) in a similar
design for the Jordan 92s. I've done a variation this which is still acceptable by
but required less wood and woodwork. No meter results available but I enjoy the
sound-- even on organ recitals.
I've also recently found a discontinued vtl (I think) design from Fostex. It looks
like a fun build.
I had overlooked this thread when it was first started. The FE127 was the first
single driver pair I bought and it's still the favorite. Lots of styles and build possibilities.
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