The Overblow-Booster Mk2 is now available as a Parts Kit to retrofit to your own harp. Here's a hands-on instructional video showing how it's done:
https://youtu.be/j-9AM5eahfY
Link to the Ordering page is in the Description.
OVERBLOW-BOOSTER MK2 PARTS KIT - Retrofit Your Own Harp!
- Brendan
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