Unsurpassed audio with excellent stereo imaging, ultra low noise, superb transient response and transparent, and distortion-free sound. Superior performance comparable to console preamps. Rugged, lightweight all-metal enclosure designed for long life and portability. Includes XLR I/O jacks, Power Off/On, +48V phantom power 3-way switch, selectable integrated limiter, dual Gain controls, Power On and dual Peak LED indicators. Powered by 9V Alkaline or NiMH battery.