This will bump up the gain of your low gain dynamic and ribbon mics to a usable level. Kinda one of those "must-haves" if you have a Shure SM7b or Royer 121 especially for quieter sources.
No trades, local pick up only.
From Sweetwater:
Provides up to 25dB of noise-free amplification; your low-output mics will come to life
Turns any microphone preamplifier into a studio-quality ribbon pre
Boosts the signal at the source, so long cable runs won't sap the signal's vitality
Ultra-transparent Class A JFET circuitry protects your tone
Free lifetime limited warranty for parts and labor with product registration
Manufactured responsibly in Cloud Microphones' Tucson, Arizona factory