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| Portable Headphone Amps Discussion of portable headphone amps. |
07-03-2009, 05:11 PM
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Headphoneus Supremus
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Join Date: Jul 2008
Location: A Bottom Dweller
Posts: 6,877
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Quote:
Originally Posted by fuseboxx
I'm also curious as to how dangerous it is to roll opamps.
What are the chances that you're going to fry your amp if you're a newbie without the proper gear?
Is there a good tutorial anywhere here? Will try to google and search around as well.
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It is really not dangerous. Using a ground strap to ground yourself first ensures that you don't zap the circuit board with ESD (electro-static discharge). People working at electronic manufacturing use ground straps all the time.
This is the one I use. That alligator clip is attached to a banana clip. I just pull out the alligator clip and insert the banana clip to the ground of my ac receptacle.
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07-03-2009, 06:14 PM
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Head-Fi'er
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Join Date: Jun 2005
Posts: 89
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How big is the difference in SQ when using Optical vs Coax vs USB?
Negligible? Small? Significant? Huge?
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07-03-2009, 06:40 PM
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100+ Head-Fi'er
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Join Date: Jul 2008
Location: Europe
Posts: 283
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Quote:
Originally Posted by Anouk
Hi Rhw! I have the dx1000 but I have decided to go open phone for hom euse so it is already sold. I must say thought hat it is the best sounding closed phone that I have had, i prefer it to the pro900 with the d10 although it does sound even better (wider soundstage, more open) with my woo, despite the problems I am having. It is more ocmfortabl ethen the pro900 but the good thing about the pro900 is that you can fold it up and that it is very rugged so you can use it on the road, i would not recommend this with the jvc.
It should be fairly easy to get the jvc and I do not think (although I might be wrong) that the new price of the jvc and pro900 is very different. If you are looking for a close dphone fo rhome use I would really recommend the jvc. I know a lot of people say that a portable amp is not enough for these, but I disagree.
Greetings, Anouk,.
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Thanks for your statement.
I also had the DX-1000 for a weekend and liked it (even not burned in),
but I nevertheless sent it back. At the moment I use a HFI 780 (already cable and damping modded). It is not really comfortable for me.
I think I prefer the open phones, too.
Curious to get the HF-2 sometimes late summer.
__________________
"Less is more." - Mies van der Rohe
head-fi related audio stuff
Headphones: Koss Porta Pro, [Grado SR60], Grado HF2, Grado RS1
Amps/DAC: Sigtone/Shek H1, iBasso D10 Cobra (mod), Yamamoto HA-02
Sources: iMac, MacBook Pro, USB Monica, Touch 16
Cables: DIY AG/AU Mundorf mini-mini and mini-cinch + LOD adapter, FadelArt cinch/RCA, van den Hul OptoCoupler
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07-03-2009, 11:51 PM
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100+ Head-Fi'er
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Join Date: May 2009
Posts: 215
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Quote:
Originally Posted by fuseboxx
I'm also curious as to how dangerous it is to roll opamps.
What are the chances that you're going to fry your amp if you're a newbie without the proper gear?
Is there a good tutorial anywhere here? Will try to google and search around as well.
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It is not that dangerous to roll opamps and it just a little precautions just to be safe.
If you don't have a ground strap and static bag you can find it at basically any electronic store and cost no more that $10 all together.
__________________
Headphones: Sennheiser-HD650,K701,Westone 3,Grado-SR80,ipod earbuds
Amps: Elekit TU-882,iBasso D10
Sources: Denon DVD-1940ci,Harman Kardon DVD-25,Computer,iPod 120gb,Clip 2gb
Sold: ATH-M50
Feedback
http://www.head-fi.org/forums/f12/hvu-432471/
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07-04-2009, 04:49 AM
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Headphoneus Supremus
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Join Date: Jul 2008
Location: A Bottom Dweller
Posts: 6,877
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I received from HiFlight (Ron) the Topkit (AD744/EL8201) from the mail today. Installed it and have been listening to it the last 3.5 hours. Its good, really good, well worth it.
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07-04-2009, 06:04 AM
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Headphoneus Supremus
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Join Date: Jul 2008
Location: the Netherlands
Posts: 1,544
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Hello, I got to say, I listened to my iriver h120/ibasso d10 via optical and connected my d10 via lineout to my woo wa2. That last bit gave a bit of trouble I guess because of the automatic switching chip inside the d10. Usb/lineout is no trouble but optical lineout takes a bit to get recognized. Anyway the sound was VERY good and caused me to cancel the sale of my iriver once more. I really want to get a laptop with optical output now (my d10 is functioning as a temporary dac for me at home).
I think the lineout is a lot better then the amp of the d10+dac. Not that hte stock amp is anything to sneeze at lineout i sjust better imho if fed to my woo.
Greetings, Anouk,
__________________
misc fs: mini-rca cable eur50 dimarzio m-path rca-rca cable 50eur
fs(pm me for details) NOS sony d25s+int psu $225 all-in worldwide(WITHOUT BATTERY) only used once
fs(pm me for details)3 months old like new condition meier-audio corda symphony-2 headphoneamp(high low impedance/stepped attenuator)/dac/preamp eur800 all-in worldwide
Things I find important about a headphone 1 accurate imaging! not just wide/deep soundstage. 2 details 3 dynamics 4 treble (extension and sparkle) 5 miodrange forward 6 bass, punchy but not domkinating
favourite headphones: 1 sennheiser hd800 2 audio-tehcnica l3000 3 akg k701 4 sennheiser ie8 5 audiotechnica ad2000
for head-fi feedback http://www.head-fi.org/forums/f12/anouk-353179/
View my profile for information about my present/past headphones/headphone amps and other equipment and what I want to buy in the future.
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07-04-2009, 06:51 AM
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100+ Head-Fi'er
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Join Date: May 2009
Posts: 215
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Quote:
Originally Posted by wuwhere
I received from HiFlight (Ron) the Topkit (AD744/EL8201) from the mail today. Installed it and have been listening to it the last 3.5 hours. Its good, really good, well worth it.
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I was wondering is they only one type/set of top kit or are they different kinds of top kits?
If so does the price varies between them?
__________________
Headphones: Sennheiser-HD650,K701,Westone 3,Grado-SR80,ipod earbuds
Amps: Elekit TU-882,iBasso D10
Sources: Denon DVD-1940ci,Harman Kardon DVD-25,Computer,iPod 120gb,Clip 2gb
Sold: ATH-M50
Feedback
http://www.head-fi.org/forums/f12/hvu-432471/
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07-04-2009, 07:13 AM
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Headphoneus Supremus
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Join Date: Jul 2008
Location: A Bottom Dweller
Posts: 6,877
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Quote:
Originally Posted by hvu
I was wondering is they only one type/set of top kit or are they different kinds of top kits?
If so does the price varies between them?
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I don't know if there are different kinds. I only bought the AD744/EL8201 combo. And these are excellent. They make the D10 sound like a different amp. Not night and day but very discernable. On my ER4S, the upper bass is very taut and tuneful.
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07-04-2009, 08:45 AM
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100+ Head-Fi'er
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Join Date: Aug 2008
Location: Denmark
Posts: 251
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WOW I just got this Amp in Singapore on a special offer. It sounds so much better than expected. Specially the optical out from my mac book is fantastic. Now I have to find out what people say about the different OPamps. I do not think I can find the time to play with them all and run them in. So I am hoping to find comments of them here in this thread. What a great piece of electronics.
__________________
Headphones: SR325i, HD650 w/ ALO cable, HD595, ER-4S, SuperFreQs
Amps: LISA III, iQube, RSA P-51 Mustang, iBasso D10
Sources: Vincent S6MK, SONY D25s, MacBook Pro, 80 GB iPod
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Sold: K701, HF-2, GS1000, DT-880, DT-990, Shure SE530, UE Trible.fi 10, UE Super.fi 5, Headsix, Grace Design m902, Fubar III, Cute Beyond, Spitfire DAC, Vincent KHV-1
Run over by truck: Porta Pro 25th Anniversary ED
I use R&M Headcases for transportation.
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07-04-2009, 08:56 AM
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100+ Head-Fi'er
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Join Date: Jul 2008
Location: Europe
Posts: 283
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Quote:
Originally Posted by hvu
I was wondering is they only one type/set of top kit or are they different kinds of top kits?
If so does the price varies between them?
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At the moment Ron offers two TopKits.
AD743/8616 (maybe 743CA, too)
and
AD744OB-CA/EL8201
(CA=Class A, OB=Open Bias)
Larry has posted some appropriate descriptions of the sound characteristics in this thread.
The 744 is more difficult to solder, therefore the kit will be more expensive.
Ask Ron/HiFlight!
__________________
"Less is more." - Mies van der Rohe
head-fi related audio stuff
Headphones: Koss Porta Pro, [Grado SR60], Grado HF2, Grado RS1
Amps/DAC: Sigtone/Shek H1, iBasso D10 Cobra (mod), Yamamoto HA-02
Sources: iMac, MacBook Pro, USB Monica, Touch 16
Cables: DIY AG/AU Mundorf mini-mini and mini-cinch + LOD adapter, FadelArt cinch/RCA, van den Hul OptoCoupler
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07-04-2009, 09:36 AM
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Headphoneus Supremus
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Join Date: Jul 2008
Location: the Netherlands
Posts: 1,544
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I just wanted to say that I find it funny that I wuthere and rhw both joined head-fi around the seem time about a year ago.
Yes, I really want a laptop with optical output.
Greetings, Anouk,
__________________
misc fs: mini-rca cable eur50 dimarzio m-path rca-rca cable 50eur
fs(pm me for details) NOS sony d25s+int psu $225 all-in worldwide(WITHOUT BATTERY) only used once
fs(pm me for details)3 months old like new condition meier-audio corda symphony-2 headphoneamp(high low impedance/stepped attenuator)/dac/preamp eur800 all-in worldwide
Things I find important about a headphone 1 accurate imaging! not just wide/deep soundstage. 2 details 3 dynamics 4 treble (extension and sparkle) 5 miodrange forward 6 bass, punchy but not domkinating
favourite headphones: 1 sennheiser hd800 2 audio-tehcnica l3000 3 akg k701 4 sennheiser ie8 5 audiotechnica ad2000
for head-fi feedback http://www.head-fi.org/forums/f12/anouk-353179/
View my profile for information about my present/past headphones/headphone amps and other equipment and what I want to buy in the future.
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07-04-2009, 11:44 AM
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100+ Head-Fi'er
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Join Date: Jul 2008
Location: Europe
Posts: 283
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Quote:
Originally Posted by Anouk
I just wanted to say that I find it funny that I wuthere and rhw both joined head-fi around the seem time about a year ago.
Yes, I really want a laptop with optical output.
Greetings, Anouk,
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Yes, indeed, that is funny.
(I recognized this today, too.)
[A MacBookPro is really great - not only - for audio  ]
__________________
"Less is more." - Mies van der Rohe
head-fi related audio stuff
Headphones: Koss Porta Pro, [Grado SR60], Grado HF2, Grado RS1
Amps/DAC: Sigtone/Shek H1, iBasso D10 Cobra (mod), Yamamoto HA-02
Sources: iMac, MacBook Pro, USB Monica, Touch 16
Cables: DIY AG/AU Mundorf mini-mini and mini-cinch + LOD adapter, FadelArt cinch/RCA, van den Hul OptoCoupler
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07-04-2009, 11:55 AM
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Junior Head-Fi'er
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Join Date: Mar 2009
Posts: 20
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Quote:
Originally Posted by rasmushorn
WOW I just got this Amp in Singapore on a special offer. It sounds so much better than expected. Specially the optical out from my mac book is fantastic. Now I have to find out what people say about the different OPamps. I do not think I can find the time to play with them all and run them in. So I am hoping to find comments of them here in this thread. What a great piece of electronics.
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hey!! rasmuhhorn where u get the special offer? interested to get 1 too thanks!
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07-04-2009, 12:34 PM
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Junior Head-Fi'er
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Join Date: Mar 2009
Posts: 20
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Hey rasmushorn... where u get the D10 at special offer? interested to get 1 too!
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07-04-2009, 06:21 PM
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100+ Head-Fi'er
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Join Date: May 2009
Posts: 420
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I'll probably defer from rolling the opamps for a long time 
Anyway, could you guys give comments or opinions regarding my impressions of the D10?
* Very detailed and spacious as has already been mentioned a lot before
* Increased bass response and fullness, though I don't hear this associated a lot with the D10
* Detail and spaciousness is more attributed to the amp section while the increased bass response and fullness of the sound is more attributed to the DAC section.
A question also:
What do you guys think is relatively better: The D10 as a standalone DAC or the D10 as a standalone amp? I seem to prefer it as a standalone amp more.
__________________
PC / Laptop / iPod Classic >>> iBasso D10 / FiiO E3 >>> Beyer DT770 ('07) 250ohm / Shure E2G
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