How do I convert stereo output to mono input?
I have a mixer that has a stereo output (a choice of rca or 3.5mm) and I want to connect this to an effects pedal. But I have a mono effects delay pedal that takes one mono input.
How would I convert the stereo from the mixer into this mono input, would I just use one of the sides of a connected stereo cable? or is there a better way?
(3)3 Comments
Sorted by latest first Latest Oldest Best
The traditional method of adding effects to your mix is to use an Aux or Effects bus, not the main outputs.
The wiring is Aux out -> effect ->Aux in. This has several benefits:
you can route signals to the effect independently of the main mix. E.g. you can apply the effect only to the vocals.
you can control the mix between original signal and processed signal from the mixer
Aux buses are often mono, so that solves your immediate problem too.
If it was my decision, I would simply pan the mixer channels to one side or the other and connect the output of that chosen side into the effects pedal. The mixer becomes the combining network needed to combine a stereo signal into a monophonic signal. The other unused output channel becomes useless when used this way, and exists as a spare. The output of the mixer may be inclined to overdrive the input of the effects pedal if you drive it hard, so you may need to take that into consideration. It is possible to design and build resistive networks (pads) that reduce the level of the output signal to address this problem, but you may find it isn't a problem for you. Give it a try and good luck.
One approach to connecting two (or more) outputs to one input is to sum them, using appropriate resistors to prevent the outputs trying to override each other.
For a line level signal, this could be a 1 kilohm resistor connected from the left output to the mono input, another 1 kilohm resistor from the right output to the mono input, and the grounds simply connected together.
You would have to get an appropriate lead made up with the right connectors, with the resistors in it.
Terms of Use Privacy policy Contact About Cancellation policy © freshhoot.com2026 All Rights reserved.