Headphone amp resistor type question.

[videsh]

Good day all. I have embarked on my first diy electronics project and have a small query. I decided to build the cmoy headphone amp and in almost all iterations I see they prefer metal film resistors. In my country diy components are hard to come by and i have easier access to carbon and carbon film.

Would substituting the carbon for the metal film yield a major difference?

heres the amp btw

http://www.instructables.com/id/Headphone-Amp-Chu-Moy/

Thanks in advance

[Sydney]

a major differenceNot a major difference ( I would attempt to get the value as close as possible however )

[tom_s]

Seems you are not the only one to have asked this question with regard to headphone amps - http://www.head-fi.org/t/405513/carbon-film-vs-metal-film-resistors

http://www.head-fi.org/t/121104/carbon-film-vs-metal-film-revisited

[videsh]

Thanks for the links tom. Much appreciated.

[tom_s]

No problem! That's a fun little project. If you use a DIP socket, you can try different opamps. Here's a great site - http://tangentsoft.net/audio/