Fostex 127E phase plug install

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planet10 said:


That would only have been because the mail didn't get thru. It is a crime that SPAM & the resultant antiSPAM have made email an unreliable communication medium sometimes.

I have modded FE127 in stock & ready to ship. 126s might take a bit longer, i'm working thru the next batch.

dave


Hi Dave,
That is what I thought. I was using my work email an it probably looked like spam. I just wanted to know how much they are (127). If you don't mind can you post the price here. Like I mentioned they were originaly going into the Fonkens but ended up in the BIBs to break in. So I need another pair anyway. I am making the Fonkens for the the kids room right now and they are helping to make them. Can't wait to see what they sound like.
 
I done it!!!

...and lived to tell the tale!
Having the luxury of a fried driver to practice on gave me the courage to 'butcher' my 126's.
There was some glue on the inside of the VC tube, but cutting approx 1/8" off the end of the tube removed this.
I initially left the 'nibs' as suggested earlier, but then I experimented with the 'dead' driver a little further, and managed to remove these completely without hitting wire, so crossed my fingers and did the same on my 'best' drivers, with no ill-effects.
The result? Much more refined and detailed treble (albeit a little less of it).
A mod worth doing IMHO.
PS Apologies to Dave - I 'borrowed' your Dammar mod and redid it in Mod Podge (I didn't have any Dammar!).
 

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That is a brave mod, kazoo. Can you describe how the sound has changed? I have a pair of FE127's I built using plans from the Timinator, and they sound great, but could maybe be a little less crashy. I was thinking phase plugs might be the answer, but I don't want to lose any top end.
 
dhumke said:
I have a pair of FE127's I built using plans from the Timinator, and they sound great, but could maybe be a little less crashy. I was thinking phase plugs might be the answer, but I don't want to lose any top end.

Do the mods shown on Dave's site (Planet 10) for the FE127; don't worry you won't lose any top end. Cone treatment and basket damping are very easy and worthwhile for this driver.

Jeff
 
dhumke said:
That is a brave mod, kazoo. Can you describe how the sound has changed? I have a pair of FE127's I built using plans from the Timinator, and they sound great, but could maybe be a little less crashy. I was thinking phase plugs might be the answer, but I don't want to lose any top end.


Hi dhumke,
The phase plug seemed to smooth out the high frequencies. I did not notice loosing any top end. They just seem easier to listen to after the phase plug. Also I want to do the mods Dave has on his site and see how much more the drivers will improve.

John
 
Thanks, guys. I have been recently exposed to the "full Range Phenomenon" and am totally amazed. I have an Onkyo ss HT receiver, and with some CD's I still occasionally get up to make sure it's in stereo mode, because I'm hearing music on the sides and behind me. It sounds better than most stuff mixed for 5.1 surround, because it’s so natural. I went to a high end stereo shop with a few of my really good CD's, and listened to some ridiculously expensive systems. One system they had set up cost $150,000, (!!??) and the imaging and soundstage was nothing like the $37 Fostex’s. I kind of feel like I must be delusional, or something.

Has anyone else been down this road, and can you recommend other CD’s that have that quality? I have found Pink Floyd DSOTM, Llewellyn - Mysts of Avalon to be two of the best.

Dave
 
FE-126E Phase plug

The curiosity got the better of me today, and I put knife to dustcap on a pair of FE-126e in my Frugel-horns.

I cut around the dustcap about 2mm up (that's somewhere between 1/16" and 1/8") and trimmed to the edge of the voicecoil former.

There was some black glue most of the way around the inside of the voicecoil former. I cut this away with a sharp pointed surgical knife. Sealed the fibres around the edge with ModPodge to finish the job.

Until I get in touch with a guy in Canada to send me a couple of cedar tree phase plugs, I made my own temporary ones from 3/4" steel pipe and plastic caps 😀

SveinB
 

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At the rate you guys are going, Scott is going to have to make some more of these for me.

The original FE127 proto plugs turned out to be perfect for the FE108eS, so we made some up for 108s, now that you guys have figured out how to successfully operate on 126s & 127s they can be put to there original purpose.

Yellow Cedar (light), yellow cedar (dark) & 1 set walnut. George gets 1st pick -- althou with the black drivers he might want a black set.

dave

PS: any more discussion specifically of my plugs should move over to my AVB thread.
 

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Phase plug for FE126e

I installed the long (108eS) version of Planet-10's phase plug on my FE126E drivers.
I think however that the shorter FE103 plug would be better suited for the FE126e. The long version protrudes about 1/8" in front of the speaker surrounds.

It could be that the FE126E and FE127E are slightly different since the 127 is shielded.

SB.
 
Re: Phase plug for FE126e

Svein_B said:
I installed the long (108eS) version of Planet-10's phase plug on my FE126E drivers.
I think however that the shorter FE103 plug would be better suited for the FE126e. The long version protrudes about 1/8" in front of the speaker surrounds.

It could be that the FE126E and FE127E are slightly different since the 127 is shielded.

It is possible... with these little drivers our goal was to have have plug extend just past the front. I can send you a set of shorter plugs if you'g like to try them out.

How do they sound?

dave
 
Hi Dave! I am not complaining, the plugs seem to work nicely 🙂

I just want to suggest that I think the shorter plug would look more nicely proportioned.

Photo of FE126e with long plug:
 

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