MS-704 4 CH. Headset Speaker Main Station

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 Limiter Threshold: +5dBu ± 3dB
• Maximum Output Level before
• Distortion: >= 17dBu

Speaker Output

• Load Impedance: >= 4Ω
• Max Output Level before
• 1% Distortion: 20dBu ± 2dBu

Partyline Output

• Off Noise: < -74dBu
• Output Impedance: >10KΩ

Partyline 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 - 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: <= 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

• Intercom: XLR-3M (2 per channel)
• Announce Out: XLR-3M (audio)
• Program: (1) XLR-3F
• Hot Mic / IFB Interface: (1) 1/4 in. (0.64 cm) phone jack
• Accessory: (1) DB-15F
• AC Power: IEC 320 connector

Rear Panel Controls

• (1) Power switch

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) Partyline 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

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

• 10.86lbs. (4.94 kg)

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