Audac PRE220 Two Zone 10 Channel Stereo Pre-AmplifierThe PRE220 series preamplifiers are solutions for applications where a large number (up to 8) of microphones (or other mono balanced audio inputs) need to be mixed to two output zones. The multifunctional stereo design with a total of 10 inputs allows connection for any type of audio source such as microphones, Bluetooth devices or line level audio sources. Inputs one up to eight are balanced, allowing the connection of microphones or line level audio