# 15 volt or 12 volt question

**URL:** <https://lookmumnocomputer.discourse.group/t/15-volt-or-12-volt-question/3948>\
**Category:** Uncategorized\
**Created:** [August 29, 2021, 10:10pm UTC](https://lookmumnocomputer.discourse.group/t/15-volt-or-12-volt-question/3948 "2021-08-29T22:10:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jewceman](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jewceman](https://lookmumnocomputer.discourse.group/u/Jewceman)\
**Post date:** [August 29, 2021, 10:10pm UTC](https://lookmumnocomputer.discourse.group/t/15-volt-or-12-volt-question/3948/1 "2021-08-29T22:10:37Z")

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Hey I recently have been looking for decent filters and have stumbled upon the MOTM-480 filter and decided I wanted to take a crack at it. Thing is it requires 15 volts and I only have a 12 volt power supply and don’t really want to get a 15 volt one. Would it still work and perform well at 12 volts or is the 15 mandatory? I will also include a link to the manual if it helps, can anyone help? [https://synthtech.com/docs/MOTM-480\_manual.pdf](https://synthtech.com/docs/MOTM-480_manual.pdf)

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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:** [August 30, 2021, 1:46pm UTC](https://lookmumnocomputer.discourse.group/t/15-volt-or-12-volt-question/3948/2 "2021-08-30T13:46:57Z")

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Some 15V modules work well in 12V without any changes, but others require some value adjustments. The best would be to build it before on a breadboard to test it in 12V 🙂