# Controlling MKS-50 with E1 over USB

**URL:** <https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683>\
**Category:** General discussion\
**Created:** [May 16, 2021, 3:32pm UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683 "2021-05-16T15:32:57Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![flonky](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@flonky](https://forum.electra.one/u/flonky)\
**Post date:** [May 16, 2021, 3:32pm UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683/1 "2021-05-16T15:32:57Z")

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Hi, I have my E1 connected to my MacPro via USB. I would like to edit my MKS-50 via the E1.  
I create a track in Logic with an External Instrument triggering my MKS-50. I play it via my Midicontroller. When I move a knob on the E1 (with the MKS-50 preset from the library) I see Logic receiving Sysex messages (no Midi filter activated in Logic) but the MKS-50 doesn’t change the sound.  
What am I doing wrong?  
Thanks, Flo

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**Author:** ![martin](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.electra.one/martin/32/145_2.png) [@martin](https://forum.electra.one/u/martin)\
**Post date:** [May 18, 2021, 10:12am UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683/2 "2021-05-18T10:12:18Z")

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Hi @flonky, just to understand it a little bit more… is MKS-50 connected to Electra’s MIDI connectors or is it connected to your mackbook with another USB MIDI interface?

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**Author:** ![flonky](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@flonky](https://forum.electra.one/u/flonky)\
**Post date:** [May 18, 2021, 11:23am UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683/3 "2021-05-18T11:23:38Z")

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The E1 ist connected to the Mac via USB and the MKS-50 is connected to another USB MIDI Interface (Midiface 16x16) with In and Out connection.

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**Author:** ![martin](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.electra.one/martin/32/145_2.png) [@martin](https://forum.electra.one/u/martin)\
**Post date:** [May 21, 2021, 6:51pm UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683/4 "2021-05-21T18:51:28Z")

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sorry for slow communication - I was busy with working on the firmware. I have MKS-50 and Logic here in the workshop. I will test it out tomorrow.

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**Author:** ![flonky](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@flonky](https://forum.electra.one/u/flonky)\
**Post date:** [August 5, 2021, 11:39am UTC](https://forum.electra.one/t/controlling-mks-50-with-e1-over-usb/683/5 "2021-08-05T11:39:02Z")

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Any news about the MKS-50?