FE127 project - Page 2

Dumbass · 18th September 2005, 04:58 AM

Quote:

Originally posted by jim_vt
Could you maybe draw a picture of what you mean? I'm having a brain fart...usually happens around this time of night.

Thanks for the assistance so far though

Well, the idea is that in a TL you want the stuffing to be on the driver end of the pipe, down to about half the length of it. Since stuffing drops with gravity, you need to figure out a way to suspend it so it doesn't settle at the bottom.

jim_vt · 18th September 2005, 05:54 AM

It just seems so....inexact

I guess I'll buy a bag or two of polyfill and some netting and play around.

youyoung21147 · 18th September 2005, 08:30 AM

IMHO if you use a bag it means you need much stuffing. Maybe it isn't necessary.

Personally I use some polyester fiber that is presented like a thick and lite "carpet". You cut it to the dimensions you need to fit your cabinet, and just fix it on the walls with tape, it works very well and there is no risk to see the stuffing whistle or fall in the enclosure.

it looks like this : http://www.conrad.fr/webapp/wcs/stor...LightId=209868

You can also look at my projects on my website, there are photos of what I mean

Just my 0.02$

GM · 18th September 2005, 04:04 PM

Quote:

Originally posted by youyoung21147
IMHO if you use a bag it means you need much stuffing. Maybe it isn't necessary.

Personally I use some polyester fiber that is presented like a thick and lite "carpet".

Greets!

Right, if someone feels the need for this much stuffing in such a small cab for it to sound good, then the cab is either way too small for the driver or tuned wrong, which we know isn't the case with this design.

Yes, this material works fine at 0.5 - 0.75" thickness in a typical size cab and 1.0 - 2.0" in large cabs (> ~3 ft^3)

GM

edjosh23 · 18th September 2005, 05:35 PM

Well yesterday we got a suprizing amount of work done. He and I discussed finishes and he decided he wanted to buy some inexpensive yet pretty plywood. So he got here at about 6pm and we started working, cutting all the wood and gluing many pieces. We decided to build it similar to the way Vikash built his w3 871s. If you don't remember the way they look the pannels are all glues together (with ofcourse butt joints) so that the front baffle fits into the sides and the top. This way you can see the layers in the plywood. We have done everything but the sides.

Unfortunately We already made the vent 2.22". I guess we will add quite a bit of stuffing. I also think that we are going to add a small brace a couple inches bellow the driver. I'm listening to them right now with no sides, not the best way to listen, but I've got a lot of work to do right now so I can't finish them right now.

The speakers still need to brake in more, they have become a little less harsh and the detail has come out some. The bass is not bad, but not as good as the wr125s.

Any recommendations for making the port longer without having to take off pieces?

I tried to take some pictures buy my camera is not working properly, wants new batterys when I put new batteries in there.

I'll post more info later when more work is done and when I can get some pictures.

Thanks,

Josh

youyoung21147 · 18th September 2005, 06:50 PM

if it is a circular port, use a tube made out of cardboard, or thick paper. Insert it in the port and make its length vary by moving the cardboard tube inside it. It will be at least sufficient to find the best tuning.

planet10 · 18th September 2005, 06:59 PM

Quote:

Originally posted by edjosh23
The bass is not bad, but not as good as the wr125s.

It never will be... it should edge out the WR in the mids thou & requires a 1/4 the ampifier power (speaker design is all about trade-offs)

dave

youyoung21147 · 18th September 2005, 07:43 PM

I'd be very interested to compare th FR125 to the Fe127 and FX120.

I bet the FR125 has more bass than Fe127, but I also think it cannot have the detail level of the Fostex drivers. It's a matter of taste then !

edjosh23 · 19th September 2005, 12:23 AM

Well I've finished the construction of the speakers. I'm very jealous! In the boxes the bass is very good, still not as good as the WR125s, but I think the detail is here. I haven't listened to many cds yet, right now I'm listening to "Take Five" by Dave Brubeck. I've listened to some John Mayer, some Dave Matthews band. I'm gonna slip in some Phil Collins, Joshua Redman, John Legend and others. I have not done a comparison with the wr125s, I really don't have to time right now, I am suprized I got this much work done today. I'll try and take pictures again after some more listening.

Thanks,

Josh

edjosh23 · 19th September 2005, 02:43 AM

Well Ive listened to quite a few more cd and I really like these speakers a lot. I moved them up on my computer desk, how my friend is going to have them and they are pretty big. Well I was able to squeeze one picture out of my camera before it died on me.

Josh

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18th September 2005, 05:54 AM	#12
jim_vt diyAudio Member Join Date: Mar 2005 Location: Blacksburg, VA	It just seems so....inexact I guess I'll buy a bag or two of polyfill and some netting and play around.

18th September 2005, 08:30 AM	#13
youyoung21147 diyAudio Member Join Date: Apr 2005 Location: Belfort	IMHO if you use a bag it means you need much stuffing. Maybe it isn't necessary. Personally I use some polyester fiber that is presented like a thick and lite "carpet". You cut it to the dimensions you need to fit your cabinet, and just fix it on the walls with tape, it works very well and there is no risk to see the stuffing whistle or fall in the enclosure. it looks like this : http://www.conrad.fr/webapp/wcs/stor...LightId=209868 You can also look at my projects on my website, there are photos of what I mean Just my 0.02$

18th September 2005, 05:35 PM	#15
edjosh23 diyAudio Member Join Date: Oct 2004 Location: Raleigh/Atlanta	Well yesterday we got a suprizing amount of work done. He and I discussed finishes and he decided he wanted to buy some inexpensive yet pretty plywood. So he got here at about 6pm and we started working, cutting all the wood and gluing many pieces. We decided to build it similar to the way Vikash built his w3 871s. If you don't remember the way they look the pannels are all glues together (with ofcourse butt joints) so that the front baffle fits into the sides and the top. This way you can see the layers in the plywood. We have done everything but the sides. Unfortunately We already made the vent 2.22". I guess we will add quite a bit of stuffing. I also think that we are going to add a small brace a couple inches bellow the driver. I'm listening to them right now with no sides, not the best way to listen, but I've got a lot of work to do right now so I can't finish them right now. The speakers still need to brake in more, they have become a little less harsh and the detail has come out some. The bass is not bad, but not as good as the wr125s. Any recommendations for making the port longer without having to take off pieces? I tried to take some pictures buy my camera is not working properly, wants new batterys when I put new batteries in there. I'll post more info later when more work is done and when I can get some pictures. Thanks, Josh

18th September 2005, 06:50 PM	#16
youyoung21147 diyAudio Member Join Date: Apr 2005 Location: Belfort	if it is a circular port, use a tube made out of cardboard, or thick paper. Insert it in the port and make its length vary by moving the cardboard tube inside it. It will be at least sufficient to find the best tuning.

18th September 2005, 07:43 PM	#18
youyoung21147 diyAudio Member Join Date: Apr 2005 Location: Belfort	I'd be very interested to compare th FR125 to the Fe127 and FX120. I bet the FR125 has more bass than Fe127, but I also think it cannot have the detail level of the Fostex drivers. It's a matter of taste then !

19th September 2005, 12:23 AM	#19
edjosh23 diyAudio Member Join Date: Oct 2004 Location: Raleigh/Atlanta	Well I've finished the construction of the speakers. I'm very jealous! In the boxes the bass is very good, still not as good as the WR125s, but I think the detail is here. I haven't listened to many cds yet, right now I'm listening to "Take Five" by Dave Brubeck. I've listened to some John Mayer, some Dave Matthews band. I'm gonna slip in some Phil Collins, Joshua Redman, John Legend and others. I have not done a comparison with the wr125s, I really don't have to time right now, I am suprized I got this much work done today. I'll try and take pictures again after some more listening. Thanks, Josh

19th September 2005, 02:43 AM	#20
edjosh23 diyAudio Member Join Date: Oct 2004 Location: Raleigh/Atlanta	Well Ive listened to quite a few more cd and I really like these speakers a lot. I moved them up on my computer desk, how my friend is going to have them and they are pretty big. Well I was able to squeeze one picture out of my camera before it died on me. Josh