I am getting back into headfi and I bought a couple things tonight....
Jul 3, 2010 at 2:58 AM Thread Starter Post #1 of 6

rvas18

New Head-Fier
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May 5, 2003
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So I recently broke my senn hd590 back out, but I lost my old amp somehow.
 
Anyway I had a slightly better paycheck this month and I decided to splurge, 1st I bought some ReZero's :)  I have been wanting a pair of IEMs.
 
I know I will prob be criticized for using fleabay, but I have been super busy, and didn't want to get overwhelmed in selecting parts and amp designs but I need something at least.
 
Impulsively (mostly due to the excitement of buying the ReZeros) I bought this: http://cgi.ebay.com/New-Stereo-CMOY-Audio-Headphone-Amp-Amplifier-CAPS-kit-/230494691519?cmd=ViewItem&pt=Other_MP3_Player_Accessories&hash=item35aa8de0bf
 
I feel guilty for being to lazy to build a cmoy myself, but this kit just seemed to easy.  The idea of a pcb is nice though.
 
Aside from that I bought one more kit.http://cgi.ebay.com/HiEnd-Headphone-AMP-KIT-Drive-AKG-and-Sennheiser-good-/180519486862?cmd=ViewItem&pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item2a07ccc58e
 
I am actually pretty excited about this one, the PCB says ha-1mk2 which if its a good copy I expect to be very pleased.  Also the components (alps, nichicon, wima, etc) looked to be of good quality.  For $80 shipped US I don't think I could find a better deal (am i wrong?)
 
**The only think I am unsure of is a power supply for this setup... What would be the recommendation from you guys?  I don't wanna spend a whole lot on power, wallwort?, diy?, maybe a battery board?, but i really do not know at all.**
 
Any feedback on my purchases is great.  I will post back on my impressions when i get everything put together and broken in :D  now the patient wait begins.......
 
 
 
PS. On a sidenote, I do have 3x opa637ap, 3x opa2132p, 3x opa637au, 3x buf634u, and 3x opa2132ua on hand from about 5-6 years ago.  Now that I am feeling the DIY spirit, you guys have any suggestions on what to do with these?
 
Jul 6, 2010 at 10:18 AM Post #4 of 6
hmm isn't the Alps pot positioned a bit weird? http://shop.hifidiy.net/pic/20087721169.jpg
 
Jul 9, 2010 at 12:09 AM Post #6 of 6
Yeah, it is.  I am  thinking of building me a nice box for the amp when this summer college semester is over.  I still am anxiously waiting to put this together.

Does that circuit look familiar to anyone here?
 

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