MB-Stealth In-Line Microphone Preamp Booster Manual

The MB-Stealth is a professional inline preamp booster designed specifically for dynamic and ribbon microphones. Featuring a discrete class-A design and superior FETs, the MB-Stealth provides an incredibly low noise floor, delivering pristine, balanced, and transparent sound. This device can be directly connected to your microphone or inline with an extra XLR cable, offering a minimal and “stealth” aesthetic setup.

Instructions

  1. Connection: Plug the MB-Stealth into your dynamic or ribbon microphone.
  2. Setup: Connect an XLR cable from the Stealth to your audio interface.
  3. Activation: Turn on phantom power on your audio interface.
  4. Adjustment: Slowly turn up the gain to the desired level.

Important Notes:

  • Designed for use with passive ribbon and dynamic microphones only.
  • Not suitable for use with condenser microphones.
  • Requires 48V external phantom power.

Specifications

  • Gain: 28dB (load 1kΩ)
  • Frequency Response: 20 Hz - 20 kHz
  • Max Output Level: 8.3 dBv (0.5% THD)
  • Output Impedance: 135 ohms
  • Current Draw: 3 mA