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Old 12th October 2007, 07:17 AM   #1
_atari_ is offline _atari_  Germany
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Default small driver for portable speakers

hi,

perhaps I am not the first person asking - but did not find anything through searching:

does anybody got an idea or recommendation for some idea for a reasonable full range speaker or construction plans to build some kind of portable speakers (portable as in put in your laptop bag)?

thanks in advance

marcus
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Old 12th October 2007, 08:39 AM   #2
BHTX is offline BHTX  United States
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Peerless 830986 3"
http://www.tymphany.com/datasheet/printview.php?id=369

Peerless 830970 2"
http://www.tymphany.com/datasheet/printview.php?id=357
http://www.madisound.com/catalog/pro...oducts_id=8267

HiVi B3S 3"
http://www.partsexpress.com/pe/showd...number=297-427
http://www.zaphaudio.com/smalltest/ (scroll down)

Aura NS3 3"
http://www.aurasound.com/
http://www.aurasound.com/public/pdf/NS3-193-8A.pdf
http://www.zaphaudio.com/smalltest/ (scroll down)
* All versions of the NS3 are sold out at Madisound..
http://www.madisound.com/catalog/pro...oducts_id=1372
http://www.madisound.com/catalog/pro...products_id=83
http://www.madisound.com/catalog/pro...roducts_id=773
http://www.madisound.com/catalog/pro...oducts_id=1400

Several of the Tang Band units should suit this application, although the only ones I have any experiences with are the popular W3-871S 3" and W4-1337SA 4", which are both well-known and recommended. It appears as though the W3-871S has changed to W3-871SC, but I'm unaware of the specific changes made.
http://www.tb-speaker.com/p1.htm

Tang Band W3-871SC 3"
http://www.tb-speaker.com/detail/1208_03/w3-871sc.htm
http://www.partsexpress.com/pe/showd...number=264-813

Tang Band W4-1337SA 4"
http://www.tb-speaker.com/detail/1230_04/w4-1337sa.htm
http://www.partsexpress.com/pe/showd...number=264-848
http://www.zaphaudio.com/smalltest/ (scroll down)

And of course, the small Fostex full ranges. Here are just some 3" Fostex drivers. If you want any "bass" response whatsoever in the smallest enclosure possible, a Tang Band or Aura might be a better choice. However, any of the Fostex drivers will be much more sensitive though, and be able to play at fairly high volume levels with just a few watts...

Fostex FE83E
http://www.madisound.com/catalog/pro...roducts_id=276
Fostex FE87E
http://www.madisound.com/catalog/pro...roducts_id=277
Fostex FF85K
http://www.madisound.com/catalog/pro...roducts_id=281


Hope this helps a little. Goodluck with your project.
/Brandin
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Old 12th October 2007, 08:44 AM   #3
_atari_ is offline _atari_  Germany
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Quote:
And of course, the small Fostex full ranges. Here are just some 3" Fostex drivers. If you want any "bass" response whatsoever in the smallest enclosure possible, a Tang Band or Aura might be a better choice. However, any of the Fostex drivers will be much more sensitive though, and be able to play at fairly high volume levels with just a few watts...


Hope this helps a little. Goodluck with your project.
/Brandin [/B]

That sounds very interesting! Thanks a lot. Using effective drivers make a much easier choice for the amplifier (perhaps even some strong headphone amps? - nice dual purpose).

Thanks a lot!
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Old 12th October 2007, 09:01 AM   #4
BHTX is offline BHTX  United States
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Quote:
Originally posted by _atari_
(perhaps even some strong headphone amps? - nice dual purpose).
Maybe. Honestly, I don't have any experience whatsoever with Fostex drivers. But yeah, if lack of power is a big concern, you probably won't find much better than those Fostex drivers listed above. f you're interested in any of the other drivers listed above, you should probably look into something like these for amplification, listed below. With the Fostex drivers, it'd provide more than adqueate power. I wouldn't be surprised if you were well aware of these little amps, or at least seen them before, but just incase... You can run it off of an AC power supply (although I can't remember which country you're in before I clicked the reply button, and what you guys use), or you can use 8 AA batteries. You might be able to find them a bit cheaper. I remember buying the first generation T-Amp over a year ago or longer for like $10-$15 total on eBay. However, I ended up taking it apart to modify it, ended up putting it off, left the parts laying around, then was forced to move and lost some of the parts, then threw the rest in the trash, lol. If I wouldn't have taken it apart and lost the guts though, it would have definitely been worth the money spent..

http://www.amazon.com/Sonic-Impact-1.../dp/B00009W44B
http://www.partsexpress.com/pe/showd...number=300-958
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Old 12th October 2007, 09:06 AM   #5
_atari_ is offline _atari_  Germany
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Hi,

I am currently building a M3 . It is said to be able to deliver 6Wrms to 8Ohm.

With some fiddling and some spec-checking I cold probably find a way ...
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Old 12th October 2007, 07:50 PM   #6
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Well, I'm just starting a simple fullrange build for a set of tiny computer speakers, and I found that there simply isn't a small enough design that sounds good using a 3" woofer. The best I've seen was Zaph's B3s (http://www.zaphaudio.com/audio-speaker18.html) but the baffle was 5"x9" and I needed something closer to 3"x3". I've settled on using a pair of Aura NSW2s, and designed a compact box that matches the Vas on the spec sheet. http://www.aurasound.com/public/spea...ents/body.html

I'm using these in a very quiet setting (played at sub 60dB), so I think I'll be just fine. I haven't seen this speaker used much anywhere, so I figured I'd give it a shot.

Any comments are welcome.
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Old 14th May 2008, 08:01 PM   #7
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Default fe87e with passive radiator

I want to first thank brandon for his post #2
I made small speakers with fe87e and a peerless passive radiator.
i like how they sound but I have no test equipment. not a lot of sub bass but musical instruments sound very good.
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Old 15th May 2008, 01:04 PM   #8
squib is offline squib  United States
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Quote:
Originally posted by MatchstiK
[B]Well, I'm just starting a simple fullrange build for a set of tiny computer speakers, and I found that there simply isn't a small enough design that sounds good using a 3" woofer.
Although Spudfrog did not post a lot of detailed info, he did document a very compact sealed design for the Aura NS3-193.

NOTE: you have to scroll down to post 19 to see the aura design.


Spudfrog's computer speakers


Squib
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