Strange MP

ohrlund · Post by **ohrlund** » Mon Apr 30, 2018 10:16 am

Is there any non-gimmicky reason to have these holes drilled?

https://www.ebay.com/i/142771701744?rt= ... 2771701744

TubaDude · Post by **TubaDude** » Mon Apr 30, 2018 11:41 am

The holes are the connection point for a contact microphone. There's a black rubber "o" ring inside that holds the contact microphone. They pretty much sucks compared to the barcus berry system.

Doug Elliott · Post by **Doug Elliott** » Mon Apr 30, 2018 11:49 am

Drill them out and install a spit valve.

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