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Singular & Fostex FE206e Phase Plug and EQ Modifications
Singular & Fostex FE206e Phase Plug and EQ Modifications
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Old 16th November 2005, 09:56 AM   #1
vdbosch is offline vdbosch  Netherlands
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Join Date: Oct 2005
Default Singular & Fostex FE206e Phase Plug and EQ Modifications

A month ago I set out to build a pair of Singular Full-Range speakers to complement a Sonic Impact T-amp, with a 500 Euro budget. In pursuit of balancing this combination I tried various modifications and benefitted from numerous suggestions by Bert Doppenberg. Hence I have shared some fun experiences I had during this project on his forum.


I invite you to enjoy this report and possibly contribute comments that will further benefit this project.

In short, I build the Singular enclosures from 18mm birch ply, with sand in the dead spaces, and used the Fostex fe206e as a driver. The softdome was cut and replaced by wooden phase plugs. The effect on SPL and phase was measured to design an adapted EQ-notch (0,68 mH, 470nF, 100 Ohm).

Since the T-amp was found wanting in low bass, a 7Ah battery was added, the Nelson Pass 47 Ohm trick was tried, a new case and volume pot for good measure, and the tiny input cap's where replaced.

I now enjoy the result in a 3x6m garden house, with an Apple Powerbook with Lossless encoding in iTunes and a vintage Philips CD-player. It's a huge step from my old Luxman/B&W setup, but I feel it's not in balance yet. But before I adjust the Singular notch and T-amp again I will give them some time to properly break in, and me some time to listen and enjoy. I am very much interested in the experience of others with the notch and the t-amp.

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In the below treads I go into some further details of the modifications, for those who are interested.

Singular Modifications
T-AMP Modifications
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Old 2nd February 2006, 08:59 PM   #2
Diy martin is offline Diy martin  Netherlands
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Join Date: Apr 2003
Location: papendrecht
Talking Fostex 206e phase plug.


I am building the Oris 150 horn and gone use the Fostex 206e also , I have a pair of planet 10 phase pluggen .
Did you make the phase pluggen by your self ??

Ps. misschien is het makkelijker buiten het forum te mailen ,
Nederlands is toch wel makkelijker.
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Old 2nd February 2006, 10:48 PM   #3
happy.gringo is offline happy.gringo  Costa Rica
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Would you mind explaining the Nelson Pass 47 Ohm trick, I have seen references to it before, but I can't find any info.
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Old 16th October 2009, 09:43 PM   #4
Nicocanuck is offline Nicocanuck
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Join Date: Oct 2009
Default vintage Philips CD player

I have one of the earliest Philips models (101) made in Holland. It's made of a hefty metal construction. Seems indestructible, although it doesn't currently play. It's not the laser beam however.

Does anyone know what such a model is worth to collectors and if anyone might be interested in purchasing it?

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