Fostex FX-120 : the pure Full Range - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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
Reply
 
Thread Tools Search this Thread
Old 16th April 2005, 02:33 PM   #1
diyAudio Member
 
Join Date: Apr 2005
Location: Belfort
Send a message via MSN to youyoung21147
Thumbs up Fostex FX-120 : the pure Full Range

I have my FX-120 for one week in their TQWT now, and I begin to make them work at a correct level.

It is simply the best fullrange driver and even the best speaker I have ever heard.

The TQWT plan was given me by a sound engineer who told me it was a pure music reproducer he could hear in a speaker shop in France. I built it for a friend with Fe127e speakers and the result was already very good.

I begun to make them work last week at very low SPL in order to break them in progressively. The first thing I thought when I made them work for the first time is that they were natural. Nothing was shocking in the reproduction. I just felt the bass response was a little bit weak, because the suspension was new, so it was hard.

And today, I listened my favorite musics after 12hours of break-in... Simply wonderful ! The sound is perfectly clear, the voice is pure but the most impressive is the details level : the voices are definetely "breathing", and you can hear in the treble every little things that go away with normal speakers : the nails of the guitarist, the irregularities on the drums and cymbals. Like the guy who said it, "it reminds us of piano is a percussion instrument" because you simply hear everything, the music flows in your ears like water. Bass extension is correct and the bass delivered by the TQWT really gives another dimension of the sound, considering the small size of the driver.

The imaging is perfect as the driver is a real full range.
Bass are not really deep, the response is flat from 70 to 19000Hz, but 40Hz is clearly audible. This TQWT provides a fast and natural bass, not suffering of "slow effects" and flow noises like a bass reflex.

One thing concerning the driver : the chassis is impressively thick (6mm), and even beautiful. The magnet is not shielded but almost as large as the speaker itself. It's surrounded by rubber, I suppose it damps out vibrations and treble backwaves. The weight is enormous : 1.32kg !
There is something I really don't like on it : the suspension is made of foam. Even if this is a quality foam, soft, with close and wide bubbles, it remains foam and I'm afraid it could become dust in ten years

Last thing : Fostex has unfortunately stopped the production of the F and FX series since August 2004 (the guy from the shop where I bought them told it me) and these series won't be replaced as far. I had chance to get them in Germany for a correct price (220, in france they cost 260 the pair) as it was the guy's last pair.


So I hope it will help people choose between different drivers, as very few persons own these jowels.

I will probably change this small TQWT for another that goes down to 40Hz.



Here are some photos : http://youyoung21147.site.voila.fr/DSCF1501.JPG
http://youyoung21147.site.voila.fr/DSCF1508.JPG
http://youyoung21147.site.voila.fr/DSCF1727.JPG
__________________
Fostex F120A speaker pair for sale - 250 only !
  Reply With Quote
Old 17th April 2005, 01:00 AM   #2
james_b is offline james_b  United States
diyAudio Member
 
Join Date: Jun 2004
Location: Herndon, Virginia
Default Try them with a tube amplifier

Congratulations, they look very well made. You should try listening to them with a tube amplifier, you might like them even more.
  Reply With Quote
Old 17th April 2005, 07:47 AM   #3
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
I've yet to hear anyone who didn't like their FX120s or FX200s -- be really interesting to get some F120As to play with. With Fostex sales growing, i wonder what they will follow these up with.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th April 2005, 08:41 PM   #4
weidok is offline weidok  Netherlands
diyAudio Member
 
weidok's Avatar
 
Join Date: Jan 2004
Location: dkm
Nice work YOUYUONG

Do have drawing from the cabinet ..
Which fullrange speakers did you compare with the Fostex
FX 120 ?

I am playing with the FE 167 E and the sound realy great !!!

Planning to build a TL with the FE 207 E ...
__________________
There is NoBox like NoBox
  Reply With Quote
Old 17th April 2005, 09:00 PM   #5
Tweeker is offline Tweeker  United States
diyAudio Member
 
Join Date: Dec 2004
Location: Cincinnati, Ohio
Anyone know where to find FX 200 drivers?. F 200A looks nice, but its rather more than Id like to spend.

Madisound site says F 120A is discontinued limited quantity availible. No such comments on FX 120 and F200A. They dont seem to carry FX200, already all sold out?
  Reply With Quote
Old 17th April 2005, 09:13 PM   #6
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by Tweeker
They dont seem to carry FX200, already all sold out?
The FX200 was by far the most popular of the 4 so that makes sense...

Michael you are going to need a showroom as opposed to a living room for all your projects

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 18th April 2005, 02:33 PM   #7
diyAudio Member
 
Join Date: Apr 2005
Location: Belfort
Send a message via MSN to youyoung21147
i4M UNFORTUNATELY NOT ALLOWED to give you the plan because it belongs to the shop

If I build another TQWT, I'll put it on my website.

I compare these drivers with Fe127 and some old Celestion speakers which sound really good. I'm at school now so I'll post further details later
__________________
Fostex F120A speaker pair for sale - 250 only !
  Reply With Quote
Old 18th April 2005, 04:59 PM   #8
diyAudio Member
 
Join Date: Apr 2005
Location: Belfort
Send a message via MSN to youyoung21147
Quote:
Originally posted by james_b
Congratulations, they look very well made. You should try listening to them with a tube amplifier, you might like them even more.
I almost spent all my pocket money in these speakers so I think a new amplifier is not for tomorrow. I have an old Pioneer SX-626 which works with discrete components so, according to my uncle it's a good amp (27W R.M.S).


Quote:
Originally posted by Tweeker
Anyone know where to find FX 200 drivers?. F 200A looks nice, but its rather more than Id like to spend.


Madisound site says F 120A is discontinued limited quantity availible. No such comments on FX 120 and F200A. They dont seem to carry FX200, already all sold out?
On Fostex's website, the FX200 is already in the "discontinued" section so you can be sure not to find it anymore unless a shop has it.

The F200A is a speaker I dream I had. You can get 27Hz in a TQWT. But the problem is the price, 400 each !

I finalized my install this week end and put some home-made twisted cable although I don't feel a big difference, as I need very small lengthes from the amp to the speakers.

I ran the speakers a little louder and they sound really amazing
It's the first time in my life I feel being "inside" the music, and not facing somehow a "veil" between the speakers and my ears. As I told it, imaging is perfect and the bass provided by the TQWT is fast and natural after adjusting internal damping. I cannot describe how wonderful it is. No passive filtering, no mutliple drivers out of phase, good home-made connectors and drivers that are almost perfect. S.P.L is not a limitation, as the Fostex can deliver 100dB.
Another impressive thing, underlining it's a good driver, is the displacement in the bass : you feel deep bass but the membrane almost doesn't move ! We are far from the 2mm Xmax ! It's very different from the Fe127 which goes forth and back dangerousely !

To conclude I suppose the FX120 is the best 12cm speaker, and I'd also like trying the Supravox 135LB which looks perfect too. I hesitated very much between them and I choosed the Fostex because I were sure to get something very good, as I had a point of view on it.
__________________
Fostex F120A speaker pair for sale - 250 only !
  Reply With Quote
Old 18th April 2005, 05:43 PM   #9
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by youyoung21147
old Pioneer SX-626.... It's the first time in my life I feel being "inside" the music, and not facing somehow a "veil" between the speakers and my ears
You have something to look forward to then... it is pretty easy to get/diy a better amp than the Pioneer.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 19th April 2005, 12:08 PM   #10
diyAudio Member
 
Join Date: Apr 2005
Location: Belfort
Send a message via MSN to youyoung21147
I suppose the Pioneer is outdated, and it has a quite high 1% THD @ 25W but I don't need such a power.

I'm building a small MOSFET 25W amp for a friend so I'll test it on my speakers. If I begin to change all the electronics, then I also have to buy a good CD player as I use my laptop computer as media player. It has a correct soundcard that delivers a strong output voltage, likely to a line output, and that sounds much better than my Sony walkman.

I plan to build a new amp based on MOSFETs that would deliver 50W and would pass continous current, but it's not for tomorrow, because transformers are quite exxpensive.

I go on a schooltrip this afternoon so I won't be back before one week
__________________
Fostex F120A speaker pair for sale - 250 only !
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fostex full range Jamesuk1 Full Range 58 19th July 2008 05:46 PM
Fostex full range speaker help hifibuyguy Full Range 23 3rd December 2007 05:49 PM
Fostex 206e Full Range nkg Full Range 31 12th October 2006 09:13 PM
FS: full-range Fostex FE126E BLH baggystevo82 Swap Meet 11 9th August 2006 06:51 PM
NYC Fostex Full Range Bryan Full Range 0 12th March 2004 05:39 PM


New To Site? Need Help?

All times are GMT. The time now is 10:40 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2