How to Add an Input Impedance Control to Any Mic Preamp
Build an "Input Z" control that works with any mic preamp. Estimated build time: 30 minutes. Cost: $20. 01:00 What is impedance? 01:30 Circuit diagram 05:28 How it works with John Born of Shure Inc. 09:20 Build instructions You can see the graph John mentions here: http://www.diyrecordingequipment.com/...

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