What is a Cloudlifter? Why do I need it? Essentially, it's all about gain and impedance. Some of our favorite microphones are low-output, which can be challenging due to the gain and impedance requirements. The Cloudlifter solves this problem by providing passive microphones an enormous (up to +25dB) ultra-clean boost, while properly loading the microphone's transformer for optimal performance.microphones' transformer for optimal performance. This video was recorded using an EV RE20 and a Cloudlifter CL-1.