# Control Volume / Wah AND Delay Mix

**URL:** <https://unity.neuraldsp.com/t/control-volume-wah-and-delay-mix/14201>\
**Category:** Quad Cortex\
**Tags:** quad-cortex\
**Created:** [May 26, 2024, 10:10pm UTC](https://unity.neuraldsp.com/t/control-volume-wah-and-delay-mix/14201 "2024-05-26T22:10:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![fabguitar](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/fabguitar/32/7381_2.png) [@fabguitar](https://unity.neuraldsp.com/u/fabguitar)\
**Post date:** [May 26, 2024, 10:10pm UTC](https://unity.neuraldsp.com/t/control-volume-wah-and-delay-mix/14201/1 "2024-05-26T22:10:28Z")

</div>

Hey everyone!

I’m brainstorming to find a solution to this situation :

Let’s say you want to control Wah / Volume / and Delay Mix with expression pedals, I’m running out of solutions, since the QC only has 2 exp inputs…

So I was trying to figure out something with pedals such as the Lehle Dual exp, or Mission Engineering SP1-ND, but those pedals requires both exp inputs of the QC.

So I could control let’s say Wah and Volume from a Lehle or SP1, but I would still have to figure out how to control my Delay mix…

Did someone try to plug an external midi controller by using the Midi in & out? Would it work?

Any other solution?

Thanks 🙏🏼