A high-performance, 2-channel inline microphone pre-preamp PCB heavily inspired by the DIYRE MB2 design. Provides clean, low-noise phantom-powered gain to lift weak signals from ribbon and dynamic microphones.
 
Technical Specifications
 
Gain Output: +26 dB ultra-clean gain
Noise & Distortion: Ultra-low noise and distortion design
Channels: 2 independent channels (balanced In/Out)
Key Component Requirement: Requires LSK389A ultra-low-noise dual JFET (sold separately)
Board Dimensions: 85 mm x 49 mm
 
Key Features
 
High-Gain Ribbon & Dynamic Lifter: Adds +26 dB of clean gain to low-output dynamic mics (e.g., SM7B) and passive ribbon microphones without adding coloration or noise
Ultra-Low Noise JFET Topology: Built around high-spec dual JFET circuitry for maximum signal clarity and high input impedance
3D-Printable Enclosure Supported: Shares the 85 mm x 49 mm layout matching Link Audio's printable 3D case designs on Printables (same housing size as PM14C)
 
Included:
1x D.MIC.B Dual Mic Booster Bare PCB
 
Note: This product is a bare PCB offered out of respect for DIYRE. For complete kits including metal enclosures and pre-sorted components, please support DIYRE's official kit. Please note the required LSK389A JFET IC is a specialized component.
 
 
Product name: D.MIC.B
Product identifier:  PCBX001
Manufacturer: Link Audio Design, August-Bebel-Str.18, 08373 Remse, linkaudiodesign@gmail.com