DIY Headphone amplifier recommendation

MagPal · 26th October 2011, 06:50 PM

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

Audiofanatic · 26th October 2011, 10:34 PM

Hi,

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

Audiofanatic

jcx · 26th October 2011, 10:58 PM

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)

tomchr · 26th October 2011, 11:04 PM

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

Vladco · 27th October 2011, 12:17 AM

Tangentsoft.net PPAv2 with warmer sounding opamps or amb.org M3.
Vlad

MagPal · 27th October 2011, 08:14 PM

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?

MrSlim · 10th November 2011, 09:02 PM

Are you the only person on here that hasn't heard about the Objective2?

pidesd · 09:24 PM

dao taylor cs

Vladco · 11:48 PM

Quote:

Originally Posted by MagPal

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

Tajzmaj · 11th November 2011, 01:56 AM

I'm using sds labs headphone amp with my HD650......nice amp and cheap to build.

26th October 2011, 06:50 PM	#1
MagPal diyAudio Member Join Date: Dec 2009 Location: Norway	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

26th October 2011, 10:34 PM	#2
Audiofanatic diyAudio Member Join Date: Oct 2002 Location: The Netherlands, Utrecht	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. Audiofanatic __________________ Be nice to animals.

26th October 2011, 11:04 PM	#4
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	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 __________________ 21st Century Maida Regulator, Universal Filament Regulator, 300B Driver PCBs, and more... Neurochrome : : Audio - http://www.neurochrome.com/audio - Engineering : : Done : : Right

10th November 2011, 09:21 PM	#8
pidesd diyAudio Member Join Date: Apr 2008 Location: montreal (cotes des neiges yo!)	dao taylor cs Last edited by pidesd; 10th November 2011 at 09:24 PM.

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26th October 2011, 10:58 PM	#3
jcx diyAudio Member Join Date: Feb 2003 Location: ..	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)

27th October 2011, 12:17 AM	#5
Vladco diyAudio Member Join Date: Apr 2003 Location: Denver	Tangentsoft.net PPAv2 with warmer sounding opamps or amb.org M3. Vlad

27th October 2011, 08:14 PM	#6
MagPal diyAudio Member Join Date: Dec 2009 Location: Norway	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?

10th November 2011, 09:02 PM	#7
MrSlim diyAudio Member Join Date: Jun 2009 Location: Ottawa, Ontario Blog Entries: 2	Are you the only person on here that hasn't heard about the Objective2?

11th November 2011, 01:56 AM	#10
Tajzmaj diyAudio Member Join Date: Mar 2011 Location: Ljubljana	I'm using sds labs headphone amp with my HD650......nice amp and cheap to build.

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