Let me first apologize for taking up time with his somewhat ignorant DIY question. Please feel free to ignore me, or to tell me to do my research myself.
Here’s the situation: I have a few Roland Boutique modules that all output at somewhat low levels. The mixer that I’m using (Mackie 1202) doesn’t have gain controls on its stereo channels.
Because of this, proper gain staging is only possible when I connect a Boutique to a mono channel on the mixer. Only on the mono channels can I use the gain control to bring the input level up to about 0dB. I would prefer to use the stereo channels for the Boutiques, but even with the output volume turned all the way up on the Boutiques, the input signal won’t go above -10 to -20dB on the mixer.
What I’d like to build is a simple amplifier that I can put in between a Boutique output and the mixer input that brings the level up about 12dB. There’s no need to be able to adjust the gain using a pot.
Do any of you have a suggestion for a simple circuit that would do this trick in the most sensible way possible using modern and commonly available parts?