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Old 28th November 2004, 09:55 AM   #1
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Default Which fostex for a bookshelf?

I want to built my first diy loudspeakers and I need something with these features:

1) sensitivity... I want to use good low power amp(5/15W).
I think a good impedance curve can helps too

2) dimension...I have to lay the loudspeaker on a desk 76cm high. Not a good solution indeed, but this is my condition in this moment. Max dimension: 50*30*30cm

3) low cost... 200 max

I've no long experience in loudspekers diy, so I'm here to ask your opinion. I'm thinking if a fostex fe167 or a fe207 in a reflex box can satisfy my requests.

Mark
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Old 28th November 2004, 12:36 PM   #2
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Someone have ever tried something like this?
the models with fostex Fe-127 attracts me a lot

http://www3.ocn.ne.jp/~hanbei/eng-boxmodel.html

http://www3.ocn.ne.jp/~hanbei/eng-linearmodel.html

Mark
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Old 28th November 2004, 03:04 PM   #3
jlsem is offline jlsem  United States
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Try this:

http://www.fostexinternational.com/d...fw_enc_2.shtml

And this:

http://www.fostexinternational.com/d...p/fw_enc.shtml

And this:

http://www.fostexinternational.com/d...p/ff_enc.shtml

John
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Old 28th November 2004, 06:15 PM   #4
dvdwmth is offline dvdwmth  Canada
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What an awesome site. You've sure got to hand it to fostex for setting themselves apart from the herd.
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Old 29th November 2004, 09:25 AM   #5
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Thanyou for the reply.

jlsem I've seen the fostex enclosures. DO you suggest me to don't use FE speakers? Neither the 127/167/207? They seem suitable for a standard reflex enclosure...and about the helix horn, what do you think?


Mark
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Old 29th November 2004, 11:21 PM   #6
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I've used the FE127E in a couple of different configurations. It's a wonderful little speaker for low power applications. The double-bass reflex design from Fostex is very nice but it looks to be too tall for you. The FE127E in a standard BR will only give you FR to ~70Hz. Perhaps the FE207E bass reflex cab will work.
http://www.fostexinternational.com/d...7e_enclrev.pdf
If you're going to be using the speaker next to a CRT monitor of any type you will need to go with the FE-AV series for the shielded magnet.
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Old 30th November 2004, 12:12 AM   #7
jlsem is offline jlsem  United States
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Quote:
jlsem I've seen the fostex enclosures. DO you suggest me to don't use FE speakers?
I would recommend for your first project the FF125K speaker and Fostex enclosure. The dimensions are exactly what you want, it is the simplest to build (no tube, just a hole in the baffle for the port), plenty of efficiency for your available power, and well within your specified budget.

John
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Old 30th November 2004, 01:12 PM   #8
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Mhmm...I look the ff125 datasheet and This is my question:
is it for horn or Br??? I saw the suggested enclosure but my doubt remain.
The ff125k and the fe127e cost the same... someone have listened to these two speakers and can tell me the difference?
Thankyou, again

Mark
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Old 30th November 2004, 04:24 PM   #9
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I have not heard the FF125K. I also understand that numbers don't tell you everything about a driver, however, there are some numbers that stand out comparing it to the FE127E. The FE127E has a much smoother impedance curve and HF response along with a slightly lower Fs. This would incline me to look at the FE127E over the FF125K. I can testify that the FE127E is a wonderful sounding driver. The one caviat concerning the FE127E is to be careful not to overdrive it. It is not a high power handling driver. A good low power (2W-15W) tube amp works very well.
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Old 30th November 2004, 05:04 PM   #10
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Quote:
Originally posted by Timn8ter
I have not heard the FF125K. I also understand that numbers don't tell you everything about a driver, however, there are some numbers that stand out comparing it to the FE127E. The FE127E has a much smoother impedance curve and HF response along with a slightly lower Fs. This would incline me to look at the FE127E over the FF125K. I can testify that the FE127E is a wonderful sounding driver. The one caviat concerning the FE127E is to be careful not to overdrive it. It is not a high power handling driver. A good low power (2W-15W) tube amp works very well.

Thankyou Timn8ter, you've shoot my doubt. For the power handling there are no problem because my listening room is small and my amp have 5W. I'm working on a new project...but again, nothing more than 10W
Please take part to this discussion

http://www.diyaudio.com/forums/showt...900#post523900

Mark
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