McGrath Switch App Update!

McGrath Switch App Update!

We’ve got some exciting news for everyone using our 12-Way Rotary Pickup Selector Switch! We’re rolling out a fresh update to the companion app that gives you direct control over how your switch handles boundary positions.

A frequent question we've heard from players is whether the rotary switch supports physical end stops. While endless rotation keeps the hardware flexible, we wanted to deliver that traditional end-stop feel through firmware. Now, you can choose exactly how your switch behaves when turning the dial past your first or last position.

What’s New in the App?

  • End Stop Mode (Hard Stop): When you rotate to your highest active position, the switch stops advancing—mimicking the feel of a traditional mechanical end stop. Perfect for players who want a clear boundary so they can quickly sweep to position 1 or position 12 without accidentally rolling over.



    Wrap Mode (Continuous Loop): Keep turning in either direction to wrap continuously from your last position back to position 1 (or vice versa). Ideal if you prefer rapid looping through your active pickup combinations.

Under-the-Hood Performance Upgrade
Alongside the new rotation modes, this update introduces a timing optimization for single-tap actions. Switching between relays now feels noticeably faster and more responsive the moment you tap.

Please contact us to receive the most recent firmware, this is not public until our patent filing is official.


Whether you want hard boundaries or continuous wrapping, your Thunderhorse setup is now more customizable than ever! Let us know what you think of the update, and keep an eye out for upcoming video coverage from LowendLobster and The Bass Channel showcasing these features in action.
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Hi Cormac,

I hope all is well. I’ve been laying down tracks with my bass and so far everyone is very impressed! I know I am! Is there a link you can send me for the rotary dial app? I can’t find it anywhere.

Kevin Hunnicutt

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