Swapping Fostex 207e

milezone · 1st October 2010, 08:19 PM

I'm sorry of this question has been asked before (though I searched quite a big and couldn't find an answer). Has anyone has experience with/know which drivers are interchangeable with Fostex F207E's (without requiring drilling or routing)? I'm specifically interested in AER MK1's but I'm not sure if it'll work. Any info would be appreciated. Thanks.

rjbond3rd · 1st October 2010, 09:02 PM

In what kind of enclosure? Are you only taking about what physically fits, without regard to the T/S parameters?

One easy (but probably useless) answer is that the FE206E uses the same frame + hole pattern. You can get a diagram of the frame / hole pattern from Fostex and then you'll see the nominal size of the driver written in millimeters on the diagram. Lowthers have a different spacing for the holes. I would be somewhat surprised if another good driver happens to have the exact size of the Fostex. Last time I tried, even the Fostex 8" Sigmas did not fit the hole pattern of the 206/207 because they have a round bezel compared to the square bezel.

(Off-topic but many of the 6" Fostex holes do line up with each other, e.g. FE166E, FE166ES-R, FE168E-Sigma. Alas, the FE138ES-R's are smaller, probably by 30 millimeters if we can judge by the model number -> nominal size mm convention.

milezone · 2nd October 2010, 05:12 PM

They're in an open baffle configuration right now. I'm talking about what physically fits and also aligns to the same hole pattern, spacing and dimensions. Any help would be greatly appreciated.

hm · 2nd October 2010, 05:43 PM

Hello,
AER has a lowther cut out:

Breite x Höhe des Korbes: 20,2 cm x 20,2 cm
Gesamttiefe: 7,25cm
Befestigungslochanordnung rechteckig: 14,0 cm x 15,2 cm
4 x Lochdurchmesser: 7,0 mm
Schallwandausschnitt: 19,0 cm
http://www.aer-loudspeakers.com/html/mk_1.html

so it won´t fit.

1st October 2010, 08:19 PM	#1
milezone diyAudio Member Join Date: May 2009	Swapping Fostex 207e I'm sorry of this question has been asked before (though I searched quite a big and couldn't find an answer). Has anyone has experience with/know which drivers are interchangeable with Fostex F207E's (without requiring drilling or routing)? I'm specifically interested in AER MK1's but I'm not sure if it'll work. Any info would be appreciated. Thanks.

2nd October 2010, 05:43 PM	#4
hm diyAudio Member Join Date: Feb 2004 Location: near Hamburg Germany	Hello, AER has a lowther cut out: Breite x Höhe des Korbes: 20,2 cm x 20,2 cm Gesamttiefe: 7,25cm Befestigungslochanordnung rechteckig: 14,0 cm x 15,2 cm 4 x Lochdurchmesser: 7,0 mm Schallwandausschnitt: 19,0 cm http://www.aer-loudspeakers.com/html/mk_1.html so it won´t fit. __________________ http://www.hm-moreart.de

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1st October 2010, 09:02 PM	#2
rjbond3rd diyAudio Member Join Date: Jan 2007	In what kind of enclosure? Are you only taking about what physically fits, without regard to the T/S parameters? One easy (but probably useless) answer is that the FE206E uses the same frame + hole pattern. You can get a diagram of the frame / hole pattern from Fostex and then you'll see the nominal size of the driver written in millimeters on the diagram. Lowthers have a different spacing for the holes. I would be somewhat surprised if another good driver happens to have the exact size of the Fostex. Last time I tried, even the Fostex 8" Sigmas did not fit the hole pattern of the 206/207 because they have a round bezel compared to the square bezel. (Off-topic but many of the 6" Fostex holes do line up with each other, e.g. FE166E, FE166ES-R, FE168E-Sigma. Alas, the FE138ES-R's are smaller, probably by 30 millimeters if we can judge by the model number -> nominal size mm convention.

2nd October 2010, 05:12 PM	#3
milezone diyAudio Member Join Date: May 2009	They're in an open baffle configuration right now. I'm talking about what physically fits and also aligns to the same hole pattern, spacing and dimensions. Any help would be greatly appreciated.

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