# S6 expression pedal **URL:** \ **Category:** Super 6\ **Created:** [24 November 2023 05:14 UTC](https://forum.udo-audio.com/t/s6-expression-pedal/2158 "2023-11-24T05:14:53Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![BenG](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.udo-audio.com/beng/32/617_2.png) [@BenG](https://forum.udo-audio.com/u/BenG)\ **Post date:** [24 November 2023 05:14 UTC](https://forum.udo-audio.com/t/s6-expression-pedal/2158/1 "2023-11-24T05:14:53Z")
Does anyone have experience using a Moog Ep-3 with the S6? Using the mod matrix I can assign the exp source to the resonance destination and get an effect, but using the direct assignment method I can’t seem to get the pedal to modulate filter cutoff. When holding the assign button for exp/cv the locking scroll of leds just seems to kinda glitch dance around on the right patch buttons. Can exp not be routed to the VCF? Is there a list of what modulations are and arnt “valid” Apologies if this is a silly question. The EP-3 doesn’t have a manual and the S6 manual section on this basically just says plug it in. Thank you! ---
**Author:** ![BenG](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.udo-audio.com/beng/32/617_2.png) [@BenG](https://forum.udo-audio.com/u/BenG)\ **Post date:** [24 November 2023 06:10 UTC](https://forum.udo-audio.com/t/s6-expression-pedal/2158/3 "2023-11-24T06:10:47Z")
> **[Proton Drive](https://drive.proton.me/urls/953TANHSYM#m3NzYENTiC5F)** > > Proton Drive allows you to securely store and share your sensitive documents and access them anywhere. Video of the LED behavior ---
**Author:** ![BenG](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.udo-audio.com/beng/32/617_2.png) [@BenG](https://forum.udo-audio.com/u/BenG)\ **Post date:** [24 November 2023 18:22 UTC](https://forum.udo-audio.com/t/s6-expression-pedal/2158/4 "2023-11-24T18:22:02Z")
Tried again today and it seems to be working as expected. I can set up direct mappings with the expression source and got the filter going, no more dancing lights for now. So I guess my S6 was just being buggy last night?