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Old 3rd November 2010, 08:52 PM   #1
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Default Fostex: FE164 vs FE166en

I own a pair of Odeon Rigoletto speakers. The Rigoletto comes standard with modded FE164 drivers.... the mod is basically just the removal of the whizzers. I have also "Mod-Podged" the cones and added phase plugs fashioned out of small vacuum tubes. This might be too general of a question (without more info), but I am wondering if replacing the FE164 with the new FE166en would bring anything positive to the table. Does someone have any thoughts on the subject? Thanks for your help!
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Old 3rd November 2010, 09:28 PM   #2
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What range do the FE164 cover?

They are much closer relation to FE167 than FE166... 166 is more efficient and needs different box loading.

dave
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Old 3rd November 2010, 10:26 PM   #3
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Hi robber222,

I have those same speakers! Speaking strictly as a newb, the biggest improvement was just disabling the tweeter and taking out the crossover, which it sounds like you've already done.

If you want to roll drivers, just be aware that the chamber volume needs to be carefully matched, and you'll be in "trial and error" territory unless you simulate the enclosure.
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Old 4th April 2015, 08:32 AM   #4
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I have a old fe164 pair with the suspensions fatigued.I think the Qts is now low.

¿Can I replace for a FE166En?

¿Are they similars?

The cabinet is a TQWT.

¿May be re-align only change the stuffing?

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Old 4th April 2015, 07:09 PM   #5
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You best bet for a drop-in replacement is the FF165wk

dave
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Old 4th April 2015, 07:33 PM   #6
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What Dave said. The FE164 was the direct predecessor of the FE167E which was the direct predecessor, well sort of, of the FF165WK. the FExx6 series is different.

Bob
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Old 4th April 2015, 09:25 PM   #7
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but ...

"FF-WK series are fullrange speaker units ideally and exclusively designed for a bass-reflex enclosure". Will works well on a TL, Horn or TQWT cabinet?

The Qes, Qms, Qts params are very similar as the old FE164 . Good.

Xmax 1.85mm more overhang as FE164.(1mm)
Re 6.5 Ohm (7.2 Ohm FE164)
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Old 4th April 2015, 09:42 PM   #8
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Yes they will.

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Old 4th April 2015, 09:44 PM   #9
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Quote:
Originally Posted by hego View Post
Will works well on a TL, Horn or TQWT cabinet?
If the cabinet is well designed… i am just now prepping FF165 for Frugel-Horn XL.

dave
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Old 4th April 2015, 09:59 PM   #10
hego is offline hego  Europe
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Well, I will try the FF165wk. The cabinets are a 20 years old Voigt-pipes.They work fine with FE164.May be It will need only some changes with the stuffing.

Bob and Dave... Thank´s

Last edited by hego; 4th April 2015 at 10:02 PM.
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