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1st diy amp

post #1 of 7
Thread Starter 

is a cmoy really the best place to start? it seems like a cmoy isnt going to do much for sound. Is there another small amp that has a longer life expectancy for someone just breaking into this? i am looking at buying a fiio e17 but would prefer to build a portable amp if there is something that is close to comparible that i could build myself. I have shure 840s, i will be replacing the earpads witht he shure 940 pads. any suggestions? 

 

V

 

ps: also any suggestions on which soldering iron to get?

post #2 of 7
Quote:
Originally Posted by Vortaku View Post
 

is a cmoy really the best place to start? it seems like a cmoy isnt going to do much for sound. Is there another small amp that has a longer life expectancy for someone just breaking into this? i am looking at buying a fiio e17 but would prefer to build a portable amp if there is something that is close to comparible that i could build myself. I have shure 840s, i will be replacing the earpads witht he shure 940 pads. any suggestions?

 

V

 

ps: also any suggestions on which soldering iron to get?

If you're into objectivity, a CMoy probably measures as well as an O2 in many respects.  It's not to be trivialized, necessarily, especially if you use 2x9V.  Even with just one 9V, it does respectably with many headphones.  It's only with lower impedance, high-current headphones that a CMoy really falls short and needs a buffer.  There are other issues, too, to be sure - but not enough to deter your efforts at a first headphone amplifier.  It will always remain my first recommendation as a DIY build for headphone audio.

 

As for a soldering iron, you might try the search tool or just look at this thread that's only a few spaces away from your post:

http://www.head-fi.org/t/686645/starter-diy-soldering-iron-recommendations

post #3 of 7
Thread Starter 
Quote:
Originally Posted by tomb View Post
 

As for a soldering iron, you might try the search tool or just look at this thread that's only a few spaces away from your post:

http://www.head-fi.org/t/686645/starter-diy-soldering-iron-recommendations

thanks, i just tossed it on the end to see if anyone wanted to respond, i plan on googling multiple reviews and vids and then coming to different forums and getting thoughts on them

post #4 of 7

I saw a hackaday article on the CMoy back in 2005 and built one as a hoot, the article linked to Tangents website. I still have my first one...I carried it for a year and my daughter carried it for 2 more. When I got it back from her I sorta placed it on the shelf with my "keeper" amps, my daughter said "nice shrine dad"... I listened to it again not long ago and it is surprisingly good. The Panasonic pot has a little crackle in it now but its been thru hell and dozens of batteries. I always felt it was a sort of rite of passage to build one. 

post #5 of 7
Thread Starter 

Part of my concern with a cmoy is i dont really know which one of the hundreds of of desgns out there to follow lol

post #6 of 7

So read as much as you can about each of the different variants. After that you will be better prepared to select between the various compromises that the designers have chosen.

post #7 of 7
Quote:
Originally Posted by Vortaku View Post
 

Part of my concern with a cmoy is i dont really know which one of the hundreds of of desgns out there to follow lol

This one:

http://tangentsoft.net/audio/cmoy-tutorial/

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