The Cloudlifter CL-4 Mic Activator Rack Mount is a high-quality microphone preamp designed for professional audio applications. With a signal gain of 25dB and four outputs, this preamp is perfect for boosting the signal strength of multiple microphones. Manufactured in the United States by Cloud, this preamp features a sleek blue design and is compatible with XLR audio inputs. The CL-4 also includes a rack mount option for easy integration into a studio setup, as well as phantom power for powering condenser microphones. With a lifetime manufacturer warranty, this preamp offers reliable performance for any musician or audio engineer.