replace FE167E with FE207E

cgian · 4th December 2009, 09:10 AM

Hi to all
I would like to ask if it is possible to change FE167E with FE207E in a BIB enclosure with dimensions 31cmx42cmx168cm without critical sound changes.

Scottmoose · 4th December 2009, 02:41 PM

No time to do any Vp checks, but you'll probably loose a bit of LF gain due to the pipe being acoustically smaller than ideal; might balance out a bit though due to the higher inherent efficiency of the 207. Depends on what exactly it is you're trying to do.

Leonidas · 4th December 2009, 10:13 PM

My BIB's are 30x48x167 cm , originaly for Lowther DX3.
One day I tried some Fostex FE207e's and they , at least in the lows , sounded beter then the Lowther.
Maybe also a little room dependent.
Just give it a try, you want be disappointed.

warmest gretting Leon.

cgian · 5th December 2009, 08:07 AM

Thanks Scottmoose and Leonidas for the advice.
The experiment i want to check is to lower the LF.I attach a picture also to have an idea about room space and position of speakers.The problem is that i have to cut a bigger hole on front baffle to fit FE208E, so if the result is disappointing will be the of enclosure.

cgian · 5th December 2009, 10:32 AM

this is the picture

freddi · 9th December 2009, 12:47 PM

huge pipe - 207 should have half the cone displacement for same output

cgian · 4th June 2010, 12:09 PM

Finally i followed leonidas advice and i replace the fe167e with fe207e.From the first note the bass is much better than before.It is more deep and tight . Listening to a cd with several kinds of drums, with a reasonable volume, i felt the bass in my chest.The only thing now is to wait for "break in", for mid and high's.

GM · 4th June 2010, 01:37 PM

'Sounds' like all you really needed to do was add some series resistance to the 167, but 'BIB' rules for driver size too where improving the quality/quantity of its (mid) bass output is concerned.

GM

Leonidas · 4th June 2010, 02:55 PM

CGIAN ,

Glad you like the bass output.
Mid and high's improve over time.
I'm 58 years old and don't need it, but if you are younger , maybe you need a tweeter.

The fostex FH17 will do the trick.
Experiment with a C around 0,5 ~ 2,2 uF in series with the FH17.
A friend of mine did so and even I hear some more "air" in the sound.

Good luck and enjoy the music!!

4th December 2009, 09:10 AM	#1
cgian diyAudio Member Join Date: Aug 2008 Location: Thessaloniki	replace FE167E with FE207E Hi to all I would like to ask if it is possible to change FE167E with FE207E in a BIB enclosure with dimensions 31cmx42cmx168cm without critical sound changes.

4th December 2009, 10:13 PM	#3
Leonidas diyAudio Member Join Date: Nov 2003 Location: Eindhoven	My BIB's are 30x48x167 cm , originaly for Lowther DX3. One day I tried some Fostex FE207e's and they , at least in the lows , sounded beter then the Lowther. Maybe also a little room dependent. Just give it a try, you want be disappointed. warmest gretting Leon. __________________ Leon

4th June 2010, 01:37 PM	#8
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	'Sounds' like all you really needed to do was add some series resistance to the 167, but 'BIB' rules for driver size too where improving the quality/quantity of its (mid) bass output is concerned. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

4th June 2010, 02:55 PM	#9
Leonidas diyAudio Member Join Date: Nov 2003 Location: Eindhoven	CGIAN , Glad you like the bass output. Mid and high's improve over time. I'm 58 years old and don't need it, but if you are younger , maybe you need a tweeter. The fostex FH17 will do the trick. Experiment with a C around 0,5 ~ 2,2 uF in series with the FH17. A friend of mine did so and even I hear some more "air" in the sound. Good luck and enjoy the music!! __________________ Leon

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

4th December 2009, 02:41 PM	#2
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	No time to do any Vp checks, but you'll probably loose a bit of LF gain due to the pipe being acoustically smaller than ideal; might balance out a bit though due to the higher inherent efficiency of the 207. Depends on what exactly it is you're trying to do.

5th December 2009, 08:07 AM	#4
cgian diyAudio Member Join Date: Aug 2008 Location: Thessaloniki	Thanks Scottmoose and Leonidas for the advice. The experiment i want to check is to lower the LF.I attach a picture also to have an idea about room space and position of speakers.The problem is that i have to cut a bigger hole on front baffle to fit FE208E, so if the result is disappointing will be the of enclosure.

9th December 2009, 12:47 PM	#6
freddi diyAudio Member Join Date: Aug 2005	huge pipe - 207 should have half the cone displacement for same output

4th June 2010, 12:09 PM	#7
cgian diyAudio Member Join Date: Aug 2008 Location: Thessaloniki	Finally i followed leonidas advice and i replace the fe167e with fe207e.From the first note the bass is much better than before.It is more deep and tight . Listening to a cd with several kinds of drums, with a reasonable volume, i felt the bass in my chest.The only thing now is to wait for "break in", for mid and high's.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Change between FE167E and FE207E	cgian	Full Range	0	4th December 2009 08:55 AM
Fostex fe207e in 36l box	quiet fish	Swap Meet	0	12th July 2009 05:25 PM
FE207E Specs	Bob Brines	Full Range	5	30th April 2009 03:00 PM
WTB: Single FE207E or PX for 2 x 166/167 (UK)	phresh	Swap Meet	0	7th April 2009 12:54 PM
BSC for MLTL FE207e	afunkymonk	Full Range	8	30th January 2009 11:53 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read