FEATURES: - 8 in 4 out Audio Matrix mixer, The sound source input of 8 channels are available distribute to the 4-CH channel sound source output. - Can connect with an RM-6284 four zones microphone (RJ45 interface) - Can connect with 4 remote sound source input panel LM-6284 (RJ45 interface) - 4-CH Mono Mic/line balanced input with three-ban equalizer adjustment between treble and bass( front panel) and input gain adjustment( rear panel). - Input CH-1 with override mute function ( the override attenuate can be adjust), With Independent phantom power switch. - Input CH-2~4 with Phantom power switch - 4 channel stereo or mono Line Unbalanced input with input gain adjustment (Rear panel) - 4 channel mono balanced out put with equalizer between treble and bass and Mute button (Front panel) - The Four output channel with independent remote mute control switch, and One mute control switch which can cover the whole zones. - All of the output and input channels are with Level dictator and Clip dictator. - Built-in monitor speaker can monitoring 4 channel's output signal with volume control and available to chose Front monitor or Rear monitor. - Universal voltage 100-240VAC Power Supply. - DC24V DC backup power supply with a parallel output interface.