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Description

We took the circuit out of our active Ribbon microphone "The Seville" and basically put it in a box. The result was an active microphone booster that can provide any dynamic or passive ribbon microphone with up to approx. 25dB of nice clean gain.
Just a note on the Gain. This value varies for all boosters based on the 48V phantom power. Depending on the manufacturer and how good the 48V is provided, your gain can vary anywhere from 20 to 28 db

Components:

  •  
  • Linear Low Noise Dual Surface mount Transistors
  • Neutrik connectors
  • powder coated steel chassis
Reference Links
https://cathedralpipes.com/am…

Cathedral Pipes Micro-Amp for Passive Mics

DonnyThompson 9 December 2015

Forums

From Cathedral Pipes, the Durham Micro Amp Buffer, designed to add up to an additional 25db of clean, transparent gain for all passive microphones.
It uses typical 48v Phantom Power - found on most mic preamps - to add more db to low-output passive mics, which often require ramped-up gain levels to work at their optimum, and that many lower end preamps don't usually have available.

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