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Old 16th February 2009, 10:25 PM   #1
yan6 is offline yan6  Canada
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Default My DIY Phase Plugs

I tried my hand at some phase plugs. I used Craftsman 23mm sockets. I used a metal chop saw to cut an inch off the square ratchet end. I then used a lathe to get them smooth and square. I only had a few minutes to give'em a try. They sound much better, they really seem to open up the sound. I hope to give them a better listen tonight.

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Ryan
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Old 18th February 2009, 04:16 AM   #2
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Those look great Ryan. FE166E? I hope to have a pair of FE206E horns up soon.

Feel free to shoot me an email. I'm in Winterpeg too.

Cheers,
Gio
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Old 18th February 2009, 12:50 PM   #3
yan6 is offline yan6  Canada
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Hey Gio, no they are Fe206 in solo206 BLH from HumbleHomeMadeHifi

Glad to see a fellow winnipeger, what kind of projects do you have on the go?
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Old 18th February 2009, 10:04 PM   #4
dixopr is offline dixopr  Canada
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I'm in winnipeg too. Cool we've got a little group. I'm looking at building a centre channel for my HT.
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Old 20th February 2009, 03:40 AM   #5
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Hi guys!

yan6: do you get much below ~50Hz? Are you using a sub - if so, what?

Some of my projects are in my signature.
Hope to have a FE206E BLH horn soon. I'm sure that will spur a low power amp build and a sub that can keep up.

Cheers
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Old 20th February 2009, 04:40 AM   #6
amp_guy is offline amp_guy  United States
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Nice job .
The first one is a little scary when you cut up the dust cap on an expensive or irreplaceable driver.
I have made some of aluminum and some brass ones.
The best results for me were made of very dense exotic hardwoods. My experiments were done with some nice little full range drivers bought from www.partsexpress.com for (us)$.49 on closeout I bought 24 of them. All showed a clear improvement most obvious in midrange detail. No test euipement purely subjective. When combined with Dammar varnish treatment to cones they were really quite surprising for a mere 49 cent speaker. I then installed some on a pair of Snell JII speakers with great results as well.
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Old 20th February 2009, 05:40 AM   #7
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Default Tell us more.

Quote:
Originally posted by amp-guy

I have made some of aluminum and some brass ones.

Could you tell us more about your experiences with brass/aluminum phase plugs.
Just last night I was experimenting with making some brass phase plugs on some cheap drivers.
The plan is to do it for my FE167e's when I have the technique down.

My experiments are far from finished, but here's what I was up to last night:
-excuse the phone-camera pics.

#1 - Dustcapectomy
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File Type: jpg 01 dustcapectomy 1.jpg (95.0 KB, 571 views)
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Old 20th February 2009, 05:44 AM   #8
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Default my experiment

#2 - protect gap
#3 - drill hole through pole-piece
#4 - cut thread in hole
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File Type: jpg 02 protect-drill.jpg (98.4 KB, 530 views)
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Old 20th February 2009, 05:48 AM   #9
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Default my process

#5 - Turn profile
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Old 20th February 2009, 05:52 AM   #10
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Default my process

#6 - cut thread on shaft of phase-plug
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File Type: jpg 04 thread plug.jpg (91.2 KB, 551 views)
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