# Simple audio signal mixer question

Discussion in 'General Electronics Chat' started by dsp_redux, Dec 22, 2009.

1. ### dsp_redux Thread Starter Active Member

Apr 11, 2009
182
5
Hi,

I have little free time these days but I'd like to build a simple audio mixer. I'm thinking of using two ${\it LM358}$ for the adder and the inverter. Since they need $\pm 4V$, I'll be using a virtual ground circuit from a $9V$ battery (implicitely using a ${\it TLE2426}$). The two audio sources are electric guitars, the output will be a lamp amp and/or a electric amp. My question is, I'm I choosing the right components for the application? I want something cheap, but the gives rather good results (duh!). This is for personal use. I just want to be able to plus two guitars in a single amp so both players are able to play at the same time. Should I have good result from these components? (worried about the ${\it LM358}$ for audio) Is there a better way of doing this? I'm I forgetting something?

Last edited: Dec 22, 2009

Apr 11, 2009
182
5