# MS20 LPF Problem?

**URL:** <https://lookmumnocomputer.discourse.group/t/ms20-lpf-problem/3143>\
**Category:** DIY STUFF\
**Created:** [March 12, 2021, 12:02pm UTC](https://lookmumnocomputer.discourse.group/t/ms20-lpf-problem/3143 "2021-03-12T12:02:37Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\
**Post date:** [March 12, 2021, 12:20pm UTC](https://lookmumnocomputer.discourse.group/t/ms20-lpf-problem/3143/4 "2021-03-12T12:20:12Z")

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For me it only happened with a square signal (stronger than the others), I added an attenuator pot on the Input of all my MS20, which allows to fix this problem, and also with the other signals to lower the entry to have more resonance 🙂

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