[weebeast]

Hi,
 
I had a question, a long while ago i saw a topic on head-fi about a portable AMP that you could build for 100 dollars or get it assembled for a bit more money here on head-fi. Since i wanne start building my own AMP i would like to know if anyone else remembers that topic, if yes what was the link of it.
 
Thank you!

 

[Huxley]

The cmoy amp.
 
Plenty of threads, id link it but i can't find the main one.
 
Anyway just run a search and im sure you'll find it.

 

[weebeast]

Thanks but i don't think it was a cmoy amp but i'm not sure. If i can't find it i will make my own cmoy amp i think using http://tangentsoft.net/ but is the "required part" list on his site up to date?
 
Thanks!

 

[Huxley]

No idea, never built one.
 
Could it have been this amp?
 
http://www.jdslabs.com/item.php?fetchitem=O2Asmb
 

 

[khaos974]

Also, the Objective 2, or O2 for short. Designed purely on specs and measures if you like that sort of thing.
http://www.head-fi.org/t/565821/so-the-objective2-headphone-amp-designed-entirely-around-the-measurements-please-read-rules-before-posting

 

[Nagasaki_Kid]

either the objective 2 or the mini^3 both fits that description

 

[sipsik]

Quote:

Thanks but i don't think it was a cmoy amp but i'm not sure. If i can't find it i will make my own cmoy amp i think using http://tangentsoft.net/ but is the "required part" list on his site up to date?
 
Thanks!

I recently built it. Yes, the list is up-to-date.

 

[weebeast]

 
Thanks guys! It's the Objective 2 that i ment.
 
I'm gonna start first with the CMOY
 
Instead of 220 µF/ 35 V electrolytic capacitor, radial leads i got 50V and instread of 0.1 µF polypropylene film cap 200 volt i got 400 Volt.
 
As op-amp i'm still thinking of what i should use, 
 
My options:
 
OPA658P
OPA2132PA
OPA623AP
OPA445BM
OPA541AP
 
I hope it will work