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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
06-11-2009, 01:53 AM
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1000+ Head-Fi'er
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Join Date: Mar 2009
Location: Milwaukee, Wisconsin
Posts: 1,211
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This is a random question, but does anyone know if while the unit is set in Preamp mode, if it bypasses the amplifier circuit?
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06-11-2009, 05:49 AM
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Headphoneus Supremus
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Join Date: Apr 2005
Location: Markham/Waterloo, ON
Posts: 2,204
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Quote:
Originally Posted by les_garten
Would be interesting to hear the Theta up against the Audio-GD REF1, that would be fun!
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Thing is, the Theta mates especially well with the MS-2is. Almost a magical match, especially with the Millet Hybrid in the audio chain. Would be interesting to see how the Moon stacks up, especially with the fact that it's more rounded off, and not as sharp as the Earth.
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Team College
Portable: Apple iPod Touch 2G 16GB > Westone UM2, AKG K518 LE, Sennheiser PX100, Apple Premium In-Ears
Home: Foobar2000 0.9.6.9 > WASAPI > Cambridge Audio DACMagic > Millet Hybrid (12FM6, dB) > Grado HF-2 #356 (bagels), Shure SRH840
My Feedback Last.fm
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06-11-2009, 06:25 AM
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Headphoneus Supremus
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Join Date: Nov 2008
Location: S. FLorida
Posts: 3,261
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Quote:
Originally Posted by azncookiecutter
Thing is, the Theta mates especially well with the MS-2is. Almost a magical match, especially with the Millet Hybrid in the audio chain. Would be interesting to see how the Moon stacks up, especially with the fact that it's more rounded off, and not as sharp as the Earth.
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Even with Grados, I'm not much of a Moon fan. Kinda dull sounding to me.
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__________________
<<<Les Garten>>> Leave the gun, take the cannoli -- Fat Clemenza circa 1950
Conversation with future Nobel Prize winner Doris Lessing in 1969: Lessing: "You do still have gangsters [in Chicago], don't you?" Studs Terkel: "Yes, but these days they're mostly in business, or politics."
"We hang the petty thieves and appoint the great ones to public office" Aesop
Ich Bin Ein Europeaner!
JOIN TEAM Snake Oil
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I Changed My Windows Desktop to a PIC of the Audio-GD REF 1
Witness the Birth of the Phoenix Phoenix
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06-13-2009, 03:46 PM
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Junior Head-Fi'er
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Join Date: Nov 2008
Posts: 9
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Quote:
Originally Posted by brady7
Hey there.
Do you think it's ok to place the zero on it's side, kind of like the way the dac magic can? (I've got space constraints) I would build some kind of base for it, like the dac magic. & if it's ok, which way up do you think it should go, ie, headphone jack near the top or the bottom? (I haven't done any mods to it, so nothing's flapping around in there (hopefully!))
Thanks. By the way, mine's been working fine since day 1 (bought from wsz last year some time)...just a little bit of hum that you have to get close to to hear.
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bump, hopefully someone who's poked around inside this thing sees this.
Thanks
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06-13-2009, 04:09 PM
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Headphoneus Supremus
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Join Date: Nov 2008
Location: S. FLorida
Posts: 3,261
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Quote:
Originally Posted by brady7
bump, hopefully someone who's poked around inside this thing sees this.
Thanks
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Won't hurt it on it's side except for a few things;
1) Make sure there is ample ventilation around the case
2) Orient it with the Vents at the highest point, ie the headphone Jack at the top so heat can get out of the headamp
3) If you have an HDAM, open it up and make sure it is double sticked well or it may come loose.
If you don't know what an HDAM is, you probably don't have one.
.
__________________
<<<Les Garten>>> Leave the gun, take the cannoli -- Fat Clemenza circa 1950
Conversation with future Nobel Prize winner Doris Lessing in 1969: Lessing: "You do still have gangsters [in Chicago], don't you?" Studs Terkel: "Yes, but these days they're mostly in business, or politics."
"We hang the petty thieves and appoint the great ones to public office" Aesop
Ich Bin Ein Europeaner!
JOIN TEAM Snake Oil
Head-Fi Feedback<<>> ebay Feedback<<>> Pink Noise Burn-In Tool!!
I Changed My Windows Desktop to a PIC of the Audio-GD REF 1
Witness the Birth of the Phoenix Phoenix
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06-16-2009, 01:57 AM
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Junior Head-Fi'er
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Join Date: Nov 2008
Posts: 9
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Quote:
Originally Posted by les_garten
Won't hurt it on it's side except for a few things;
1) Make sure there is ample ventilation around the case
2) Orient it with the Vents at the highest point, ie the headphone Jack at the top so heat can get out of the headamp
3) If you have an HDAM, open it up and make sure it is double sticked well or it may come loose.
If you don't know what an HDAM is, you probably don't have one.
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Thanks, will do. Right, it's one of the earlier models (no HDAM)...I ordered the zerodac after getting about halfway through this thread, then read the rest later & found out you'd all moved on to the HDAMs!
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06-16-2009, 02:16 AM
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500+ Head-Fi'er
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Join Date: Jan 2007
Location: NY, NY
Posts: 565
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Quote:
Originally Posted by brady7
Thanks, will do. Right, it's one of the earlier models (no HDAM)...I ordered the zerodac after getting about halfway through this thread, then read the rest later & found out you'd all moved on to the HDAMs!
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The HDAM is ordered separately anyway so no loss there...
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Xfi Fatal1ty (Coax, ASIO)-->Compass (OPA Sun V2)-->Little Dot MKIII (GE 5-star)-->HD600/SR325is/HFI-780 (S-Audio recable)/DT250-80
Gone: SR80, SR225, Sony 7506
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06-16-2009, 02:12 PM
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Junior Head-Fi'er
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Join Date: Nov 2008
Posts: 9
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Quote:
Originally Posted by ScottieB
The HDAM is ordered separately anyway so no loss there...
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Thanks...I'm thinking I might give the HDAM a shot. From reading this thread, it looks like someone with minimal technical skills & no soldering iron can still get it done, right?
What would be recommended (sun, earth, moon)? I bought mine around 10/08 from wsz...not sure if that tells you what chips are in it (I no longer have our correspondence). Sources are a Pioneer universal 563a & a Squeezebox Duet. 'phones are Grado 60s. Amp is an Onix SP3 (40 watt tube integrated) ->Vandersteen 1c.
Anyone have a spare?
Thanks.
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06-22-2009, 10:39 AM
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100+ Head-Fi'er
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Join Date: May 2009
Location: Blois, FRANCE
Posts: 131
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I've received mine this morning !! 
it comes with a dual OPA627 into the DAC section, but for the headphone amp, I think I'll put 2 LT1364....
I've read that OPA627's sound better than LT1364, even in the head/amp section...
is it true ? do I have to put 2 dual OPA627 in the head/amp unit ?
__________________
DAC/Headamp
Tianyun Zero 2009 DAC: Dual OPA MOON Headphone: 2x dual OPA627BP on BrownDog adapters
Headphones
Beyerdynamic DT880 2005 edition 250 ohms
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06-22-2009, 12:44 PM
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Headphoneus Supremus
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Join Date: Jan 2008
Location: Fukuoka, Japan (was Australia)
Posts: 3,628
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The general consensus was that LT1364s were the best in the head-amp section. See the very first post for the results of Penchum's testing.
__________________
MacBook Pro → Audio-gd Reference 3+1 → Phoenix → Sennheiser HD-800, Grado HF-2, Symphones Magnums or Parasound Zamp → Paradigm Titans + Van Den Hul or DIY cabling.
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06-22-2009, 06:44 PM
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100+ Head-Fi'er
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Join Date: May 2009
Location: Blois, FRANCE
Posts: 131
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yas I've seen it, thank you 
so I'll put 2 LT1364....
but I've opened the box 15 mn ago and what a surprise : I've paid the price for the OPA627's version and there is an old OPA2604 into this ******** DAC... 
the seller is WSZ0304 from ebay....
I'm waitong for his answer...... I don't want to be refunded, just to have the dual OP627s as written in the auction.....
I'm so angry.....
__________________
DAC/Headamp
Tianyun Zero 2009 DAC: Dual OPA MOON Headphone: 2x dual OPA627BP on BrownDog adapters
Headphones
Beyerdynamic DT880 2005 edition 250 ohms
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06-22-2009, 07:04 PM
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Headphoneus Supremus
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Join Date: Nov 2008
Location: S. FLorida
Posts: 3,261
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Quote:
Originally Posted by bbbretzel
yas I've seen it, thank you
so I'll put 2 LT1364....
but I've opened the box 15 mn ago and what a surprise : I've paid the price for the OPA627's version and there is an old OPA2604 into this ******** DAC...
the seller is WSZ0304 from ebay....
I'm waitong for his answer...... I don't want to be refunded, just to have the dual OP627s as written in the auction.....
I'm so angry..... |
That is a good vendor. They'll send you the correct OPAs. They send you a standard instead of "upgraded" Zero.
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__________________
<<<Les Garten>>> Leave the gun, take the cannoli -- Fat Clemenza circa 1950
Conversation with future Nobel Prize winner Doris Lessing in 1969: Lessing: "You do still have gangsters [in Chicago], don't you?" Studs Terkel: "Yes, but these days they're mostly in business, or politics."
"We hang the petty thieves and appoint the great ones to public office" Aesop
Ich Bin Ein Europeaner!
JOIN TEAM Snake Oil
Head-Fi Feedback<<>> ebay Feedback<<>> Pink Noise Burn-In Tool!!
I Changed My Windows Desktop to a PIC of the Audio-GD REF 1
Witness the Birth of the Phoenix Phoenix
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06-22-2009, 07:25 PM
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100+ Head-Fi'er
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Join Date: May 2009
Location: Blois, FRANCE
Posts: 131
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I hope so
but the question is : WHO will pay the shipping costs for the mistake that HE made....?
I don't want to pay 30$ again to send back this wrong DAC version... 
__________________
DAC/Headamp
Tianyun Zero 2009 DAC: Dual OPA MOON Headphone: 2x dual OPA627BP on BrownDog adapters
Headphones
Beyerdynamic DT880 2005 edition 250 ohms
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06-22-2009, 07:38 PM
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Headphoneus Supremus
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Join Date: Nov 2008
Location: S. FLorida
Posts: 3,261
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Quote:
Originally Posted by bbbretzel
I hope so
but the question is : WHO will pay the shipping costs for the mistake that HE made....?
I don't want to pay 30$ again to send back this wrong DAC version... |
He should just send you out the replacement Gratis. It's only Chips. I wold shoot a pic and email it to them.
.
__________________
<<<Les Garten>>> Leave the gun, take the cannoli -- Fat Clemenza circa 1950
Conversation with future Nobel Prize winner Doris Lessing in 1969: Lessing: "You do still have gangsters [in Chicago], don't you?" Studs Terkel: "Yes, but these days they're mostly in business, or politics."
"We hang the petty thieves and appoint the great ones to public office" Aesop
Ich Bin Ein Europeaner!
JOIN TEAM Snake Oil
Head-Fi Feedback<<>> ebay Feedback<<>> Pink Noise Burn-In Tool!!
I Changed My Windows Desktop to a PIC of the Audio-GD REF 1
Witness the Birth of the Phoenix Phoenix
|
06-22-2009, 07:59 PM
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100+ Head-Fi'er
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Join Date: May 2009
Location: Blois, FRANCE
Posts: 131
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do you think he'll just send only the good chips ?
I hope he'll answer soon....
__________________
DAC/Headamp
Tianyun Zero 2009 DAC: Dual OPA MOON Headphone: 2x dual OPA627BP on BrownDog adapters
Headphones
Beyerdynamic DT880 2005 edition 250 ohms
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