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| Portable Headphone Amps Discussion of portable headphone amps. |
01-31-2005, 10:03 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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The amp list is now up to date with all the suggestions that have been made.
__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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01-31-2005, 10:37 PM
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Head-Fi'er
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Join Date: Jan 2005
Posts: 92
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That is a sweet list. Thanks for doing it, it's been a big help for me.
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01-31-2005, 10:57 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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Quote:
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Originally Posted by Fred
That is a sweet list. Thanks for doing it, it's been a big help for me.
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Glad to here it.With all the help this forum has given me, I wanted to give something back. Although with all the money this forum cost me, I should sue for mental distress 
__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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02-01-2005, 02:30 AM
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1000+ Head-Fi'er
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Join Date: Apr 2003
Location: Kirkland, WA
Posts: 1,477
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Quote:
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Originally Posted by ghart999
Can you provide a link?
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A list of Builders for this DIY Amp is located at the bottom of this page
http://elvencraft.com/ppa/
The PACE that is a PPA with a quality DAC and on board Battery pack is located http://aoselectronics.com/pace.html
__________________
Headphone Setup
Auzentech X-Fi Prelude 7.1 w/Metal Can LM4562-HA for Front L/R Channel --> Eric343's Nitrogen IC's -->LISA III XP Prototype w/HighGain/HighBias: Made at Triadaudio.com -->Senn HD580/Grado HP-1
7.1 Home Theater Setup
52in LG LCD 120hz -->
Harmon Kardon AVR 354 7.1 Receiver:
Speaker Setup : Klipsch Forte II (Fronts), Academy (Center), Quartet (Surrounds), Quartet (SurroundBacks)
Subwoofer: SVS PB12/Plus
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02-01-2005, 11:05 AM
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Head-Fi'er
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 58
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Another possible supplier for amps - I just came accross Twinstarr on eBay, he's in Canada (good for those living here and unsure about duties and international shopping woes). Sells two models currently, a nicely made Cmoy, for US$90, and a Apheared47 Cmoy enhanced variant with two dual output opamps, priced at US$110. Add shipping to all prices, and he's working on a lower priced version, the Red model that will sell for around 70 US.
The Cmoy model is at http://www.twinstarr.com/twinstarr_blue_cmoy.htm
Apheared model (shown below) is at http://www.twinstarr.com/twinstarr_black_apheared.htm
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02-01-2005, 12:25 PM
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Headphoneus Supremus
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Join Date: Mar 2002
Location: South PHILA PA
Posts: 6,136
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blitze
HI: That amp look good. I mean it uses a 9 volt batt. Have you heard it and if so wich one. There seem to be 3 of them.
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02-02-2005, 04:52 AM
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100+ Head-Fi'er
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Join Date: Dec 2004
Location: Burbank, CA
Posts: 104
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This is a great thread. I'd like to nominate for a sticky.
__________________
=======================================
Sources: iTunes/iPod/Mac
Dac(s): Squeezebox/m-audio Transport
Amps: Total Bithead/Eddie Current EC-01/headsix/go-vibe 6
Cans: ety 6i/grado sr60/senn 280/ Senn 555/Sen 580
In Need of: Better USB Dac
Build websites in drupal
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02-02-2005, 05:04 AM
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Headphoneus Supremus
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Join Date: Jun 2003
Location: Pittsburg, TX
Posts: 1,614
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I'll also nominate for sticky, but I would like to see the amps divided into portable and transportable status. Some of these amps being mentioned aren't exactly easy to lug around.
__________________
Home Rig:
---------Echo Audiofire2 -\ ------------/- AKG K271 Studio
------------------------------Gilmore V1
Pro-Ject 2 -> NAD PP-2 -/------------\- Audiosource AMP-100 -> Insignia NS-B2111
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02-02-2005, 05:46 AM
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Head-Fi'er
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Join Date: Sep 2004
Posts: 73
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Sorry I haven't posted sooner.
I would like to recommend the "Super Mini Mint Amp" sold by Western Impressions on Ebay.
It is sold as both a kit and assembled.
I am not sure if it is a true "MINT" amp or an updated/upgraded Cmoy. However, it sounds better than the basic Cmoy amp that I also own. Slightly better resolution overall and tighter bass. It uses a Burr Brown OP2227P opamp.
To my ears this amp does what it should-not only amplifies but enhances the sound coming out of a portable cd player that I mainly use it with. It adds no annoying or electronic colorations. And it nots even really broken in.
I think it sounds as good or better than some other more expensive amps that I have tried that shall remain nameless.
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02-02-2005, 11:43 AM
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Head-Fi'er
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 58
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Quote:
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Originally Posted by LTUCCI1924
blitze
HI: That amp look good. I mean it uses a 9 volt batt. Have you heard it and if so wich one. There seem to be 3 of them.
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hi, Ltucci,
Sorry, I haven't heard or seen in person any of those, I found the seller in eBay and thought it would be good to have it on this list. His work seems to be above the average hobby builder selling in eBay, but that's entirely based on looking up his webpages. 
The best is the Black model, $110 US. Interesting to see that he's coming up with a lower cost version (Red model) based on the same chip used in the Electric Avenues PocketAmp V2 - he's noticed that Gary is selling a lot of PA2V2s I think.  (I have one of them, just started the burning in as per your suggestion in another thread)
I support the suggestion to make this thread a sticky - it's very useful for people starting to shop around indeed...
EDIT:
Just found on the listings on eBay that Xenos has a new amp model, selling in the same price range (US$ 55 Buy it Now price in eBay) as the PocketAmpV2 from Eletric Avenues. It even looks like it externally, but they have their own design circuits inside.
And the inside view - two circuit boards, final output stage by individual transistors, not Opamp:
Pretty neat. Another one to add to the list, maybe? 
Full specs at http://www.aptecpro.com/Xenos-Prod/X...ata-sheet.html
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02-02-2005, 07:09 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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Added all three of the Twinstarr models.
Quote:
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Originally Posted by blitze
Another possible supplier for amps - I just came accross Twinstarr on eBay, he's in Canada (good for those living here and unsure about duties and international shopping woes). Sells two models currently, a nicely made Cmoy, for US$90, and a Apheared47 Cmoy enhanced variant with two dual output opamps, priced at US$110. Add shipping to all prices, and he's working on a lower priced version, the Red model that will sell for around 70 US.
The Cmoy model is at http://www.twinstarr.com/twinstarr_blue_cmoy.htm
Apheared model (shown below) is at http://www.twinstarr.com/twinstarr_black_apheared.htm
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__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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02-02-2005, 07:11 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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Can you provide a link to a website? I would rather not list eBay auctions as the source if possible.
Quote:
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Originally Posted by cfo
Sorry I haven't posted sooner.
I would like to recommend the "Super Mini Mint Amp" sold by Western Impressions on Ebay.
It is sold as both a kit and assembled.
I am not sure if it is a true "MINT" amp or an updated/upgraded Cmoy. However, it sounds better than the basic Cmoy amp that I also own. Slightly better resolution overall and tighter bass. It uses a Burr Brown OP2227P opamp.
To my ears this amp does what it should-not only amplifies but enhances the sound coming out of a portable cd player that I mainly use it with. It adds no annoying or electronic colorations. And it nots even really broken in.
I think it sounds as good or better than some other more expensive amps that I have tried that shall remain nameless.
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__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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02-02-2005, 07:15 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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Added
Quote:
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Originally Posted by blitze
Just found on the listings on eBay that Xenos has a new amp model, selling in the same price range (US$ 55 Buy it Now price in eBay) as the PocketAmpV2 from Eletric Avenues. It even looks like it externally, but they have their own design circuits inside.
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__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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02-02-2005, 07:19 PM
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100+ Head-Fi'er
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Join Date: Oct 2002
Location: Denver, CO
Posts: 177
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Does anyone know how to get this turned into a sticky? I emailed the administrators last week about it with no response.
__________________
4G iPod --> Sik Din --> Xin Supermacro V3.0 -->AKG K501 w/ Homegrown cable
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02-02-2005, 07:45 PM
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Head-Fi'er
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Join Date: Jan 2005
Posts: 92
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Another helpful column to add to the list would show which manufacturers allow a demo of their amps. It's so hard to choose an amp by web site hype and people's opinions. I need to buy audio w/ my ears. Examples: Electric Avenues and Shellbrook Labs allow returns after trying. Xenos and jmt audio don't.
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