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List of DIY headphone amplifiers
Feb 1, 2011 at 9:04 PM Thread Starter Post #1 of 72
WyldRage

WyldRage

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EDIT: nullstring has made a wiki page with this list here: http://www.head-fi.org/wiki/list-of-diy-headphone-amps
 
I just had a thought: we need a list of current do-it-yourself headphone amplifiers. So here it is. I'll be updating when someone alerts me to new amps or amps that I have missed. Now, since there is a very large amount of circuit designs available, I'll only be listing available kits and PCB (if you want a circuit design only, you should check headwize).
 
And what do you know? I just found a brand new design that came up yesterday (31/01/2011)!
 
*****IMPORTANT***** If the link sends you to a thread, read it before posting. Nothing is worse than a newcomer asking questions that have already been answered.
 
Available as a kit (and sometimes as a PCB).
Available as a PCB.
Available as a group buy (hurry!)
Currently unavailable.
Schematics only. If you're lucky, there might be a bill of materials, or even files to make a PCB.
 

Solid State

AMB α20 (info & PCB)
AMB M3 (info & PCB)
AMB Cavalli-Kan Kumisa III (info & PCB)
AMB β22 (info & PCB) (kit)
DAO & DAO with Taylor CCS (info)
Kevin Gilmore Dynalo (info)   (PCB) 
Kevin Gilmore Dynahi (info) (PCB)
Pavel Macura Audio Dispre 2 - JFET (info & PCB)
Sjöström Audio QRV01 through QRV08 (info & PCB)
Twisted Pear Audio Ventus (info & kit)
"The Wire" (info & Group Buy @ DIY Audio)
 

Hybrid

Aikido 24V line-stage/headphone amplifier (info) (PCB & kit)
Cavalli Audio Compact Tube Hybrid (CTH) (info) (Group Buy @ Head-Fi)
Cavalli Audio Single Opamp Headphone Amplifier II (SOHA II) (info) (PCB & kit)
Cavalli Audio Embedded Hybrid Headphone Amplifier & Revision A (EHHA & EHHA Rev. A) (info) (PCB & kit)
Millett Hybrid MAXed (info) (PCB & kit)
Millett Hybrid MOSFET-MAX (info) (PCB & kit)
Millett Hybrid MiniMax (info) (PCB & kit)
Starving Student Millett Hybrid (info)
 

Tube

Aikido 9-Pin All-in-One Line-Stage/Head-Phone Amplifier (info) (PCB & kit)
Aikido Octal All-in-One Line-Stage/Head-Phone Amplifier (info) (PCB & kit)
Aikido SRPP+ stereo line-stage and headphone amplifier (info) (PCB & kit)
Bottlehead Crack OTL (info & kit)
Bottlehead Single Ended eXperimenter's (S.E.X) (info & kit)
Bottlehead Smack WOT (info & kit)
Cavalli Audio Bijou OTL (info) (PCB & kit)
ecp.cc L'espressivo (info)
Hagerman Technology Castanet (info)
Pete Millett "Jonokuchi" (info & PCB)
Maple Tree Audio Ear+ HD (info & kit)
World Designs HD3S (info & kit)
 

Portable

AMB Mini3 (info & PCB) (kit)
Decware ZKIT3 (info & kit)
CMoy (info) (Bass Boost PCB) (kit)
Oatley Electronics K272A (tube hybrid) (info & kit)
PPA (info & PCB)
PIMETA v2 (info & PCB)
 

Electrostatic

Cavalli Audio eXStatA (Solid State & Hybrid) (info)
Kevin Gilmore All-triode Direct Drive (tube) (info)
Kevin Gilmore Blue Hawaii (hybrid) (info)
Kevin Gilmore Current-Domain (KGSS predecessor?) (info)
Kevin Gilmore Solid State High Voltage (thread)
Kevin Gilmore's Stax SRM-T2 clone (thread)
 

Links

Audiologica (CMoy, PPA & Pimeta)
AMB Laboratories (also stocks PCB for Kevin Gilmore amps)
Beezar (kits for Millett Hybrids)
Bottlehead
Cavalli Audio
Decware
DIY RESOURCES - Kevin Gilmore DYNAMIC HEADPHONE AMPLIFIERS and POWER SUPPLIES
DIYforums.org (Millett Hybrids)
Electric Sumo (CMoy kit)
Glass Jar Audio (kits and PCB for AMB and Cavalli amps)
GlassWare Audio Design (Aikido)
Hagerman Technology
JDS Lab (CMoy Bass Boost PCB)
Maple Tree Audio Design
Oatley Electronics K272A kit
Pavel Macura Audio
Pete Millett's DIY Audio pages
Sjöström Audio
Twister Pear Audio
 

Threads

Thread on "The Wire"
Thread on the DAO
 

Schematics

ecp.cc (several DIY projects)
Headwize Library (DIY with an enphasis on the Y)
 
Feb 1, 2011 at 9:33 PM Post #2 of 72
 Both the M3 and CKK are available as kits too from Jeff Rossel, at www.glassjaraudio.com. 
 
Then you have the Dynalo, Dynahi, KGSS, PPA, PIMETA V2. 
 
Don't forget the new a20 from AMB as well!
 
Feb 1, 2011 at 10:15 PM Post #4 of 72


Quote:
b0klau said:
Banzai V2 cmoy (electicsumo)
Click to expand...

 
I've never seen that site before, is it legit?
 
 
Quote:
masantos said:
 Both the M3 and CKK are available as kits too from Jeff Rossel, at www.glassjaraudio.com. 
 
Then you have the Dynalo, Dynahi, KGSS, PPA, PIMETA V2. 
 
Don't forget the new a20 from AMB as well!
Click to expand...


Thanks, they were added, except for the KGSS. Is there a kit or PCB of that one somewhere? As far as I know, the deisgn is available on headwize, but it is sold commercially by Headamp.
 
Feb 1, 2011 at 10:31 PM Post #5 of 72
Ought to be a sticky (hint, hint).
 
In addition to KGSS is the KGBH. Even though these are available commercially, the design is available, but boards are not.
 
There are others like the Raven (see my sig), which is only p2p, along with other projects on Headwize, which deserves a nod as we all started there.
 
 
Feb 1, 2011 at 10:34 PM Post #6 of 72
Feb 1, 2011 at 10:50 PM Post #8 of 72
Yeah, the KGSS and the KGBH are both on headwize, as well as dozens of other very interesting designs that generally exist as circuit drawings only. Since they're already listed there, I'll simply include a link to Headwize.
 
Chances are, if you're ready to do one of the headwize projects, you really don't need this list.
wink.gif

 
Feb 1, 2011 at 10:52 PM Post #9 of 72


Quote:
pabbi1 said:
Ought to be a sticky (hint, hint).
 
In addition to KGSS is the KGBH. Even though these are available commercially, the design is available, but boards are not.
 
There are others like the Raven (see my sig), which is only p2p, along with other projects on Headwize, which deserves a nod as we all started there.
 
Click to expand...

 
I heard the headwize articles for the KGSS and KGBH had flaws in them?  I saw some random postings here and there from some people, while searching.
 
 
Feb 1, 2011 at 11:14 PM Post #10 of 72

 
Quote:
jcx said:
Headwize is inactive but archived at http://gilmore2.chem.northwestern.edu/projects/
you can still read/search the design/build threads for several popular diy projects
 
 
[since it took some effort to find these and then the thread was deleted I'll post this to appropriate threads to keep it from getting lost again:]
 
some diy project collections - now getting dated but useful links:
 
http://gilmore2.chem.northwestern.edu/ubb/showpage.php?fnum=3&tid=6339&&action=seekpost&pid=51081
 
and
 
http://www.head-fi.org/forum/thread/136005/diy-projects-kits#post_1600278
Click to expand...



 
 .
 
Feb 2, 2011 at 10:55 AM Post #12 of 72
a new one, 'the wire' by Owen aka opc on DIYA; which is a reference opamp headamp that measures like nothing I have ever seen before. the chips its based on do sound excellent too, I have heard them before, but my boards havent arrived yet.
 
Feb 2, 2011 at 12:00 PM Post #14 of 72
oh another one, schematics and board layouts available, but not boards or kits. is the DAO and DAO with taylor CCS mod, which is basically a power jfet follower, very few parts (about 10 if that plus power supply), but fantastic performance and one of the best sounding headamps i've heard. requires some nouse to get done. its by Patrick AKA EUVL on DIYA. best driving headphones from 40->150 ohms. also his rather enigmatic X'd 2 stage power jfet circlotron is a great amp. there are board layouts for the DAO and DAO with taylor mod posted and ready to go if you are capable of making your own PCBs. TBH a PCB is not even that necessary.
oh
 
and the Dispre II is another, can get PCBs for that though afaik
 
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