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Old 26th October 2011, 06:50 PM   #1
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Default DIY Headphone amplifier recommendation

Hi,

I am planning to build a headphone amplifier with digital inputs, and are looking for recommendations for a good sounding headphone amplifier. I am planning to use it on a pair of beyerdynamic DT 250 (80Ohm).

I would prefer through hole mounted components and I am able to etch double sided PCB's.

Do anyone have any good recommendations on a good sounding headamp? I do prefer a slightly warmer sounding tone.


Best regards,
Magnus,
Norway
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Old 26th October 2011, 10:34 PM   #2
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Thumbs up Joachim Gerard

Hi,

Search the forum for headphone amp from Joachim, I'm sure you'll find a good DIY Project made by mister G.

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Old 26th October 2011, 10:58 PM   #3
jcx is offline jcx  United States
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if you recable the headphone for 4-pin "balanced" connectors you could just put a buffer chip inside each I/V converter feedback loop, adjust the I/V feedback R for enough gain and have a single stage I/V to headphone amp (assuming balanced current output DAC)
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Old 26th October 2011, 11:04 PM   #4
tomchr is offline tomchr  United States
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I'm using an LME49600. Take the schematic from the "typical application" schematic in the data sheet. I added a DC servo to avoid electrolytic caps. I use it with my Sennheiser HD-650's. Sounds good to me...

~Tom
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Old 27th October 2011, 12:17 AM   #5
Vladco is offline Vladco  United States
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Tangentsoft.net PPAv2 with warmer sounding opamps or amb.org M3.
Vlad
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Old 27th October 2011, 08:14 PM   #6
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Thanks for the tips!

tomchr: How exactly did you implement the DC servo?

Vladco: Looks like two good alternatives. Do you have any personal experience with these two? What op-amps would you recommend?
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Old 10th November 2011, 09:02 PM   #7
MrSlim is offline MrSlim  Canada
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Are you the only person on here that hasn't heard about the Objective2?
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Old 10th November 2011, 09:21 PM   #8
pidesd is online now pidesd  Canada
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Last edited by pidesd; 10th November 2011 at 09:24 PM.
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Old 10th November 2011, 11:45 PM   #9
Vladco is offline Vladco  United States
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Quote:
Originally Posted by MagPal View Post
Thanks for the tips!

Vladco: Looks like two good alternatives. Do you have any personal experience with these two? What op-amps would you recommend?

Sorry to miss yours question. They sound great to mine ears with good source and good cans.There is plenty review of these amps. Usually they are not the limiting factor so you hear ether source or IC or cans. Because of this you question is very system dependent. Don't forget to make interconnects and decent power supply. This amps deserve it.
O2 is still FOTM IMHO. For $30 you can build it and have a fun to compare.
Vlad
Sorry reviews on head-fi.org

Last edited by Vladco; 10th November 2011 at 11:48 PM.
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Old 11th November 2011, 01:56 AM   #10
Tajzmaj is offline Tajzmaj  Slovenia
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I'm using sds labs headphone amp with my HD650......nice amp and cheap to build.
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