I am interested in building a pair of fullrange speaker and have for the last couple of weeks red a lot on this and and fullragedriver forum. Since this will be my first diy project I want to keep it quite simple. For driver I looked at either at the Fostex Fe 206, 207 or the Jordan JX92S. The thing I am having problems with is to find a detailed cutting chart like this: http://hometown.aol.de/hphinder/homepage/ The only detailed chart I found is for the 206, 207 Fostex recommended enclosures but from what I read these are not always preferred for the above mentioned drivers.
As far as sound I have a fairly large living room and would like some volume as well as the good bas response.
If anyone have any suggestions and link I would be very grateful.
Regards
John
As far as sound I have a fairly large living room and would like some volume as well as the good bas response.
If anyone have any suggestions and link I would be very grateful.
Regards
John
Fostex publishes detailed enclosure plans for each of their drivers.
http://www.fostexinternational.com/docs/speaker_comp/rec_enc_1.shtml
Also, Martin King has provided a ML-TL plan on his website. IMHO, this would be the best design to go with in your situation.
http://www.quarter-wave.com/Project05/Project05.html
http://www.fostexinternational.com/docs/speaker_comp/rec_enc_1.shtml
Also, Martin King has provided a ML-TL plan on his website. IMHO, this would be the best design to go with in your situation.
http://www.quarter-wave.com/Project05/Project05.html
There are some TL designs for the Jordan on this forum as well.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=40738&highlight=
http://www.diyaudio.com/forums/showthread.php?s=&threadid=40738&highlight=
J-low
How about a horn? here is my favorite design for the Jordan JX92S
go here http://www.passdiy.com/speakers.htm
for more info.
Regards Philip
How about a horn? here is my favorite design for the Jordan JX92S
go here http://www.passdiy.com/speakers.htm
for more info.
Regards Philip
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Warning - patience is required!
John - DO NOT give up after you turn them on for the first time, foaming at the mouth.
They MAY NOT sound good, depending on your other gear and the music you listen to.
They WILL take time to run in
I understand the bass in a bass reflex is a compromise, compared to horn/ML-TL type designs.
the oracle
John - DO NOT give up after you turn them on for the first time, foaming at the mouth.
They MAY NOT sound good, depending on your other gear and the music you listen to.
They WILL take time to run in
I understand the bass in a bass reflex is a compromise, compared to horn/ML-TL type designs.
the oracle
Fostex enclosures
nice to hear other people expermenting with the same speaker i am working on.
I enjoy listening to the fostex fe207 in a bassreflex enclosure at the moment.
They do sound a bit middy but are absolute very good speakers
Did some simulations on this speaker and because the max x is only about 1.5 mm I think the best thing will be a horn enclosure.
beside that I wil use active velocity control..... (transconductance amplifier)
please report about the original recommended enclosure..
nice to hear other people expermenting with the same speaker i am working on.
I enjoy listening to the fostex fe207 in a bassreflex enclosure at the moment.
They do sound a bit middy but are absolute very good speakers
Did some simulations on this speaker and because the max x is only about 1.5 mm I think the best thing will be a horn enclosure.
beside that I wil use active velocity control..... (transconductance amplifier)
please report about the original recommended enclosure..
Stefano:
I am very interessted in the design of firstwatt please??
I am sure the Transmission line will work fine
but experementing with an horn is my desire at the moment.
However if you have a picture....
I ve choosen for a design of fostex horn enclose
http://www.fostexinternational.com/docs/speaker_comp/pdf/recom_enclose/207e_enclrev.pdf
Some changes wil be made however The speaker middle should be ear high this enclosure is only 90 cm high so for me it is to low.
this will mean that i will have to do some calculations.
and i really get lost with hornresp....
ah well
it will work out...
I am very interessted in the design of firstwatt please??
I am sure the Transmission line will work fine
but experementing with an horn is my desire at the moment.
However if you have a picture....
I ve choosen for a design of fostex horn enclose
http://www.fostexinternational.com/docs/speaker_comp/pdf/recom_enclose/207e_enclrev.pdf
Some changes wil be made however The speaker middle should be ear high this enclosure is only 90 cm high so for me it is to low.
this will mean that i will have to do some calculations.
and i really get lost with hornresp....
ah well
it will work out...
Arnold_R said:
Yeah , the speakers are not completed yet for a picture . They laks the little cosmetics necessary for a presentation
Also , two days ago me and pamaz (another diyaudio member ) did a diy meeting .
We tested the amp with the GM MLTL and the TL design of the Jordan site both for the JX 92s.
They sounded good but the Jordans TL exceeded the performance in the rensponse say up from 70hz.A more detailed and compressions free reproduction from the Jordans TL enclosure.
Of course it was lacking the bass of the GM MLTL. From now the GM MLTL will be subject to more experiment for the internal stuff.
Regarding the firstwatt design , you may imagine a power version of the Aleph P 1.7 preamp with just one current source at the bottom... no feedback ...
Many thanks to Paolo and Nelson
ciao Stefano
Hi Stefano and everybody here.
just in delay i saw this thread and would like to add my opinion on the original TL design with Jordan vs the mltl one.
As Stefano told, the final result with the jordan tl was better in our listening test, but this has to be considered not a definitive statement. Probably is necessary to tune up the mltl with the internal stuffing.
Let's say that if you need a "ready to go" design, the jordan tl is very good ( let's say that is wonderful).
If you wish to experiment, the mltl coud be a better potential design, due to the deeper bass extension that could be achieved.
In any case the detail and the relaxed sound that comes out of both design, is stunning, especially when compared to commercial loudspeakers.
One thing to note, is that IMHO the mltl is very sensitive to the volume knob position. It was a bit surprising to discover that if you crank it up , it sounds better! probably this have something to do with the internal stufffing, don't know really 'cause i'm totally unexperienced regarding loudspeakers design!
Ciao
Paolo
Hi Stefano and everybody here.
just in delay i saw this thread and would like to add my opinion on the original TL design with Jordan vs the mltl one.
As Stefano told, the final result with the jordan tl was better in our listening test, but this has to be considered not a definitive statement. Probably is necessary to tune up the mltl with the internal stuffing.
Let's say that if you need a "ready to go" design, the jordan tl is very good ( let's say that is wonderful).
If you wish to experiment, the mltl coud be a better potential design, due to the deeper bass extension that could be achieved.
In any case the detail and the relaxed sound that comes out of both design, is stunning, especially when compared to commercial loudspeakers.
One thing to note, is that IMHO the mltl is very sensitive to the volume knob position. It was a bit surprising to discover that if you crank it up , it sounds better! probably this have something to do with the internal stufffing, don't know really 'cause i'm totally unexperienced regarding loudspeakers design!
Ciao
Paolo
Jordan TL and GM MLTL
Just my two cents...
I built the Jordan TL and several different versions of GM's MLTLs.
Both the Jordan TL and GM's designs sound magnificent. The sound you get from the JX92S in either of the cabinets is nothing short of amazing. I can not imagine anyone not being delighted with either cabinet.
I prefer GM's designs primarily because they are easier to build than the Jordan TL. I can build three pair of GM's MLTLs in the time it takes me to build one pair of the Jordan TLs. They both require you to spend time listening and tweaking the stuffing to get the sound to the 'amazing' level and one is easier to adjust than the other in my opinion.
Be that as it may, as I mentioned above, you can easily get sound that is simply stunning out of either cabinet. Build 'em both, you'll be glad you did
Bruce
Just my two cents...
I built the Jordan TL and several different versions of GM's MLTLs.
Both the Jordan TL and GM's designs sound magnificent. The sound you get from the JX92S in either of the cabinets is nothing short of amazing. I can not imagine anyone not being delighted with either cabinet.
I prefer GM's designs primarily because they are easier to build than the Jordan TL. I can build three pair of GM's MLTLs in the time it takes me to build one pair of the Jordan TLs. They both require you to spend time listening and tweaking the stuffing to get the sound to the 'amazing' level and one is easier to adjust than the other in my opinion.
Be that as it may, as I mentioned above, you can easily get sound that is simply stunning out of either cabinet. Build 'em both, you'll be glad you did
Bruce
Another good option for the FE207E is a an original design called Singular
www.diy-systems.com/en-us/dept_10.html
The only thing is the opening is at the back, myself I'm not too fond of that.
cheers
Paba
www.diy-systems.com/en-us/dept_10.html
The only thing is the opening is at the back, myself I'm not too fond of that.
cheers
Paba
paba said:
Hi Paba
I am planning to build with the Fostex FE 207 E too
i have already build a ML TL with the FE 167 E
here a link for the ML TL with the FE 207 E
from MJ King
do you know this webpage
http://www.quarter-wave.com/Project05/Project05.html
Fostex FE206E folded Horn
This is my second horn that I built. The first one was a modified Mauhorn 12, this one pictured is a cross-breed between a Mauhorn 12 and Buschhorn.... Just finished and sound tested about 1 hour ago; still hard to belive how good it sounds!!!!
Still need to machine out the grill frame
This is my second horn that I built. The first one was a modified Mauhorn 12, this one pictured is a cross-breed between a Mauhorn 12 and Buschhorn.... Just finished and sound tested about 1 hour ago; still hard to belive how good it sounds!!!!
Still need to machine out the grill frame
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