Clear Com SB-704 4-Channel Switchboard Main Station

$2,745.00
PA SKU # CCM SB704 MFR # SB-704
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  • 4-Channel Switchboard Main Station with Built-In Power Supply

4-Channel Switchboard Main Station with Built-In Power Supply

4-Channel Switchboard Main Station - 5-channel X 10 station assignment matrix, no speaker - with built-in 2-amp power supply, rack mount (2RU)

SB-704 includes all of the features of the MS-704, with a 4 x10 assignment matrix in place of the internal speaker (external speaker required for station monitoring). The station features a ten-position slide switch matrix that allows assignment of any of the ten intercom lines to any of the four intercom channels, to an isolated separate party-line, or to an off position.
  • Panel Microphone Input
  • Input Type: Electret
  • Input Impedance: >=2KΩ
  • Mic Limiter Threshold: 0dBu ±3dB
  • Mic Limiter Range (SB-704): >= 15dB
  • Headset Microphone Input
  • Input Type: Dynamic
  • Input Impedance: >= 1KΩ
  • Mic Limiter Threshold: 0dBu ±3dB
  • Mic Limiter Range (SB-704): >= 15dB
  • Program Line Input
  • Maximum Level before Clipping: >= 20dBu
  • Input Impedance: >= 5KΩ
  • Headset Output
  • Load Impedance: >= 8Ω
  • Output Impedance: <= 25Ω
  • Output Limiter Threshold: +5dBu ± 3dB
  • Maximum Output Level before Distortion: >= 17dBu
  • Speaker Output
  • Load Impedance: >= 4Ω
  • Max Output Level before 1% Distortion: 20dBu ± 2dBu
  • Party-line Output
  • Off Noise: < -74dBu
  • Output Impedance: >10KΩ
  • Party-line Input
  • Crosstalk: < -60dB
  • Max level before Clipping: >= 12dBu
  • Sidetone Null Capability: > 25dB
  • Stage Announce/Balanced Line Out
  • Type: Balanced
  • Output Impedance: >= 200Ω
  • Load Impedance: >= 600Ω
  • IFB/Hot Mic
  • Type: Unbalanced
  • Output Impedance: 150Ω
  • Load Impedance: >= 600Ω
  • Frequency Response
  • Panel Mic - Party-line: 600 - 10KHz ± 3dB
  • Headset Mic - Party-line: 200 - 12KHz ± 3dB
  • Headset Mic - Line Out: 200 - 12KHz ± 3dB
  • Program Input - Party-line: 100 - 17KHz ± 3dB
  • Program Input - Headset Out: 200 - 10KHz ± 3dB
  • Program Input - Speaker Out: 300 - 10KHz ± 3dB
  • Party-line - Headset Out: 200 - 10KHz ± 3dB
  • Party-line - Speaker Out: 300 - 10KHz ± 3dB
  • Max Distortion
  • Panel Mic - Party-line: <= 0.5%
  • Headset Mic - Party-line: <= 0.5%
  • Headset Mic - Line Out: <= 0.5%
  • Program Input - Party-line: <= 0.2%
  • Program Input - Headset Out: <= 0.2%
  • Program Input - Speaker Out: <= 0.5%
  • Party-line - Headset Out: <= 0.2%
  • Party-line - Speaker Out: <= 0.5%
  • Noise
  • Panel Mic - Party-line: < -65dBu
  • Headset Mic - Party-line: < -70dBu
  • Headset Mic - Line Out: < -55dBu
  • Program Input - Party-line: < -85dBu
  • Program Input - Headset Out: < -60dBu
  • Program Input - Speaker Out: < -60dBu
  • Party-line - Headset Out: < -50dBu
  • Party-line - Speaker Out: < -50dBu
  • Max Gain
  • Panel Mic - Party-line: >= 37dB
  • Headset Mic - Party-line: 41dB ± 2dB
  • Headset Mic - Hot Mic Out: 55dB ± 3dB
  • Headset Mic - Announce Out: 55dB ± 3dB
  • Program Input - Party-line: >= -16dB
  • Program Input - Headset Out: >= 18dB
  • Program Input - Speaker Out: >= 24dB
  • Party-line - Headset Out: >= 34dB
  • Party-line - Speaker Out: >= 40dB
  • Min Gain
  • Panel Mic - Party-line: <= 25dB
  • Mains Power
  • Input Voltage Range: 100 - 240 VAC
  • Input Frequency Range: 50 - 60 Hz
  • Input Power: <= 60 VAC
  • Output Voltage: 30 VDC ± 0.5V
  • Output Current per Channel (Continuous): 1.2 A
  • Output Current per Channel (Peak): 2 A (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
  • Station Capacity
  • Up to 40 RS-601 beltpacks or 10 speaker stations or 12 headset stations distributed over all channels
  • Rear Panel Connectors
  • Switched Intercom: (10) XLR-3M (1 per channel)
  • Intercom: (4) XLR-3M (1 per channel)
  • Announce Out (1) XLR-3M (audio)
  • Program In: (1) XLR-3F
  • Hot Mic / IFB Interface: (1) 1/4 in. (0.64 cm) phone jack
  • External Speaker: (1) 1/4 in. (0.64 cm) phone jack
  • Accessory: (1) DB-15F
  • AC Power: IEC 320 connector
  • Rear Panel Controls
  • (1) Power switch
  • (4) Intercom On/Off Switches
  • Front Panel Connectors
  • Panel Mic: (1) 1/4 in. (0.64 cm) panel mounting jack
  • Headset: (1) XLR-4M
  • Front Panel Controls & Indicators
  • (1) Panel / headset mic switch
  • (1) Mic on button
  • (1) All talk button
  • (1) Announce button
  • (1) Party-line link button
  • (4) Program ON-OFF-INTERRUPT DIP switches
  • (1) Program level control
  • (4) Listen adjust controls
  • (4) Channel null adjust controls
  • (4) Channel program feed adjust controls
  • (4) Talk buttons
  • (4) Call buttons
  • (4) Listen buttons
  • (1) RMK button
  • (1) Speaker ON-OFF switch
  • (1) Speaker volume control
  • (4) Short LEDs
  • (1) Panel mic gain control
  • (1) Sidetone adjust control
  • (1) Headset audio limiter DIP switch
  • (3) Interrupt enable DIP switches
  • (4) Auto-call DIP switches
  • (4) Auto-talk/listen DIP switches
  • (4) Talk latch disable DIP switches
  • (4) Line length DIP switches
  • (10) Channel Assignment Slide switches
  • Environmental
  • 32 - 122°F (0 - 50°C)
  • Dimensions
  • 19 in. W x 3.5 in. H x 10.5 in. D
  • (483 mm x 88 mm x 267 mm)
  • Weight
  • 10.93 lbs. (4.97 kg)
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