Clear-Com MS-704 Encore 4 Channel Analog Partyline Intercom Main Station

MS-704 - Overview

Supports up to 55 beltpacks!

• Features:

  • 4-Channel 2RU Main Station with built-in Speaker
  • Supports up to 55 beltpacks or 10 speaker stations on 4 channels
  • Automatic short-circuit protection and reset with LED indicators
  • Visual and audible call signaling
  • 3 interruptible IFB channels
  • Individual volume controls for each channel
  • Program feed to both channels with selectable Program Interrupt
  • Remote Mic Kill
  • Stage Announce with relay
  • Channel A & B Link switch
  • Built-in speaker
  • Universal voltage power supply
   

• Specifications:

  • dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS
    
    Panel Microphone Input
  • Input Type: Electret
  • Input Impedance: >=2K
  • Mic Limiter Threshold: 0dBu ± 3dB
  • Mic Limiter Range: >= 20dB
    
    Headset Microphone Input
  • Input Type: Dynamic
  • Input Impedance: >= 1K
  • Mic Limiter Threshold: 0dBu ± 3dB
  • Mic Limiter Range: >= 15 dB
    
    Program Line Input
  • Maximum Level before Clipping: >= 20dBu
  • Input Impedance: >= 5K
    
    Headset Output
  • Load Impedance: >= 8
  • Output Impedance: <= 25
  • Output Limiter Threshold: +5dBu ± 3dB
  • Maximum Output Level before Distortion: >= 17dBu
    
    Speaker Output
  • Load Impedance: >= 4
  • Max Output Level before 1% Distortion: 20dBu ± 2dBu
    
    Partyline Output
  • O Noise: < -74dBu
  • Output Impedance: >10K
    
    Partyline Input
  • Crosstalk: < -60dB
  • Max level before Clipping: >= 12dBu
  • Sidetone Null Capability: > 25dB
    
    Stage Announce/Balanced Line Out
  • Type: Balanced
  • Output Impedance: >= 200
  • Load Impedance: >= 600
    
    IFB/Hot Mic
  • Type: Unbalanced
  • Output Impedance: 180
  • Load Impedance: >= 600
    
    Frequency Response
  • Panel Mic - Partyline: 600 - 10kHz ± 3dB
  • Headset Mic - Partyline: 200 - 12kHz ± 3dB
  • Headset Mic - Line Out: 200 - 12kHz ± 3dB
  • Program Input - Partyline: 100 17kHz ± 3dB
  • Program Input - Headset Out: 200 - 10kHz ± 3dB
  • Program Input - Speaker Out: 300 - 10kHz ± 3dB
  • Partyline - Headset Out: 200 - 10kHz ± 3dB
  • Partyline - Speaker Out: 300 - 10kHz ± 3dB
    
    Max Distortion
  • Panel Mic - Partyline: <= 0.5%
  • Headset Mic - Partyline: <= 0.5%
  • Headset Mic - Line Out: <= 0.5%
  • Program Input - Partyline: <= 0.2%
  • Program Input - Headset Out: <= 0.2%
  • Program Input - Speaker Out: <= 0.5%
  • Partyline - Headset Out: <= 0.2%
  • Partyline - Speaker Out: <= 0.5%
    
    Noise
  • Panel Mic - Partyline: < -65dBu
  • Headset Mic - Partyline: < -70dBu
  • Headset Mic - Line Out: < -55dBu
  • Program Input - Partyline: < -85dBu
  • Program Input - Headset Out: < -60dBu
  • Program Input - Speaker Out: < -60dBu
  • Partyline - Headset Out: < -50dBu
  • Partyline - Speaker Out: < -50dBu
    
    Max Gain
  • Panel Mic - Partyline: >= 37dB
  • Headset Mic - Partyline: 41dB ± 2dB
  • Headset Mic - Hot Mic Out: 55dB ± 3dB
  • Headset Mic - Announce Out: 55dB ± 3dB
  • Program Input - Partyline: >= -16dB
  • Program Input - Headset Out: >= 18dB
  • Program Input - Speaker Out: >= 24dB
  • Partyline - Headset Out: >= 34dB
  • Partyline - Speaker Out: >= 40dB
    
    Min Gain
  • Panel Mic - Partyline: <= 25 dB
    
    Mains Power
  • Input Voltage Range: 100 - 240V AC
  • Input Frequency Range: 50 - 60Hz
  • Input Power: <= 60V AC
  • Output Voltage: 30V DC ± 0.5V
  • Output Current per Channel (Continuous): 1.2A
  • Output Current per Channel (Peak): 2A (Do not exceed the 1.2A rating for more than 2 seconds per 1 minute period)
  • Short Circuit Recovery Time (1st short):<= 0.5 sec
  • Short Circuit Recovery Time >= 20 shorts in 20sec: <= 20 sec
   

• GTIN:

  0657248932121