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Clear-Com SB-704 Switchboard Main Station
Clear-Com SB-704 Encore Switchboard Main Station
$3,160.00

Clear-Com SB-704 Encore Switchboard Main Station

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SoundPro Item: 41669
MPN: SB-704
$3,160.00
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The SB-704 is a 2RU four-channel switchboard main station with programmable front panel buttons, individual channel short-circuit protection, individual channel volume control, a switchboard matrix, and a regulated fail-safe power supply. The SB-704 supports up to 55 beltpacks or 10 speaker stations, or 12 headset stations. The 10 x 4 assignment switching matrix allows up to 10 different groups of stations to be assigned to any one of the four channels.

Clear-Com SB-704 Features

  • Supports up to 55 beltpacks or 10 speaker stations on 4 channels
  • 10 x 4 assignment switching matrix
  • Automatic short-circuit protection and reset with LED indicators
  • Visual and audible call signaling
  • 3 interruptible IFB channels
  • Individual volume controls for each channel
  • Channel linking
  • Remote Mic Kill
  • Stage Announce with relay
  • External switchable line termination on each channel
  • Universal voltage power supply
  • SB-704 Encore Switchboard Main Station1
  • Panel Microphone Input
    • Input Type: Electret
    • Input Impedance: >=2K
    • Mic Limiter Threshold: 0dBu ±3dB
    • Mic Limiter Range: >= 15dB
  • Headset Microphone Input
    • Input Type: Dynamic
    • Input Impedance: >= 1K
    • Mic Limiter Threshold: 0dBu ±3dB
    • Mic Limiter Range: >= 15dB
  • 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
    • Output 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: 150
    • 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 GainPanel Mic – Partyline: <= 25dB
  • Mains Power
    • Input Voltage Range: 100 – 240V AC
    • Input Frequency Range: 50 – 60Hz
    • Input Power: <= 60
    • V 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
  • Environmental32 – 122°F (0 – 50°C)
  • Dimensions (HxWxD)3.5x15x10.5" (88x483x267mm)
  • Weight10.9lbs (4.9kg)

In The Box

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