Clear-Com Encore MS-704 Main Station
Clear-Com Encore MS-704 Main Station
MS-704 — Encore Main Station: 4Ch, Power supply 1.2 Amp, 2RU with Stage Announce, 5 Program Audio, Hot-Mic
The MS-704 is a 2RU four-channel main station with programmable front panel buttons, individual channel short-circuit protection, individual channel volume control, and a regulated fail-safe power supply.
Note: Access the Encore Power Supply Calculator to estimate power requirements for analog partyline systems.
DETAILS
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
TECHNICAL SPECIFICATIONS
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
Environmental
32 - 122°F (0 - 50°C)
Dimensions
19 x 3.5 x 10.5in (WxHxD)
(483 x 88 x 267mm)
Weight
6.1lbs (2.8kg)
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