Model NQ-P0100 - 4-Channel Matrix Mixer Pre-Amp Bogen's Nyquist networked 4-Channel Matrix Mixer Pre-Amplifier (MMPA) offers cost-effective performance for permanent installations and commercial sound and is designed to meet the rigorous requirements of today's sophisticated sound systems. Developed with the commercial sound contractor in mind, the MMPA provides unparalleled flexibility and versatility without the need for add-on modules. It includes state-of-the-art, built-in DSP for extensive and comprehensive signal processing-allowing users to skillfully manage and mix multiple audio input channels. The resulting audio signal mix can be directed to the MMPA's line out or streamed over the Nyquist network, where it can be used for audio distribution to one or more zones. The MMPA fits a wide range of commercial audio applications that require multi-zone paging and/or background music distribution at businesses, restaurants, retail stores, industrial facilities, and many other venues. 4- MIC/Line Inputs CH1-CH4 configurable balanced/unbalanced inputs via 3 XLR and 4 screw-terminal connections Channel four (4) can be configured to support Push-to-Talk microphone applications Mic inputs can be configured to supply Phantom Power when needed CH1 can alternately be configured as an AES3 digital input Web-based DSP control 16-band Graphic Equalizer Signal present and clip monitor Adjustable High Pass, Low Pass, and Bandpass filters Noise Gate Compressor/Limiter 7-band parametric equalizer Mixed signals can be routed to Line Out or over the Nyquist network Nyquist network-based audio input (paging, audio distribution) Line-Level Monitor Output to drive input to "legacy" amplifiers Safety: CAN/CSA C22.2 No. 62368-1:2014; UL62368-1:2014; EN62368-1:2014 EMC: FCCPart15b ClassA; ICES-003, Issue 6:2016; EN 55032:2012; EN55035:2017 Wall, Rack, or Shelf mountable - 1 RU package 19" Rack Mount Kit (NQ-RMK03; sold separately)