Clear-Com MS-704 4-Channel Headset/Speaker Main Station

4-Channel Headset/Speaker Main Station with Built-In Power Supply 4-Channel Headset/Speaker Main Station with Built-in 2-amp Power Supply, Rack Mount (2RU) Four intercom channels with programmable front-panel buttons. High-capacity, fail-safe power supply supports up to 40 RS-701 beltpacks or 10 speaker stations or 12 headset stations; 3 IFB channels, announce button/relay, channel-linking button and Remote Mic Kill switch.Features: All Channel linking Program input with individual channel level controls Remote Mic Kill switch Stage Announce Specifications: Panel Microphone Input Input Type: Electret Input Impedance: >=2KΩ Mic Limiter Threshold: 0dBu ±3dB Mic Limiter Range: >= 20dB Headset Microphone Input Input Type: Dynamic Input Impedance: >= 1KΩ Mic Limiter Threshold: 0dBu ±3dB Mic Limiter Range: >= 17dB Program Line Input Maximum Level before Clipping: >= 20dBu Input Impedance: >= 5KΩ Headset Output Load Impedance: >= 8Ω Output Impedance: <= 25Ω Output Limi