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List of DIY headphone amplifiers

post #1 of 55
Thread Starter 

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)

post #2 of 55

 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!

post #3 of 55
post #4 of 55
Thread Starter 
Quote:
Originally Posted by b0klau View Post

Banzai V2 cmoy (electicsumo)

 

I've never seen that site before, is it legit?
 

 

Quote:
Originally Posted by MASantos View Post

 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!


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.

post #5 of 55

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.

 

post #6 of 55
Quote:
Originally Posted by WyldRage View Post



Quote:
Originally Posted by b0klau View Post

Banzai V2 cmoy (electicsumo)

 

I've never seen that site before, is it legit?
 


Yes, I've ordered the banzai kit from that site before. I'm pleased to say the cmoy works very well. Great project for beginners

Also if you haven't already http://www.jdslabs.com/

These guys sell high quality PCBs for their cmoy BB (bass boost) design

post #7 of 55

oops double post

post #8 of 55
Thread Starter 

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

post #9 of 55
Quote:
Originally Posted by pabbi1 View Post

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.

 

 

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.
 

post #10 of 55


 

Quote:
Originally Posted by jcx View Post

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



 

 .

post #11 of 55

There's also the Ventus headphone amp from Twisted Pear.

post #12 of 55

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.

post #13 of 55
Thread Starter 

Both added.

post #14 of 55

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

post #15 of 55

Don't forget the Oatley K272A, easy to build, fun to listen to!

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