The Clear-Com MS-704 4-Channel 2RU Main Station with Built-in Speaker 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.
Clear-Com MS-704 4-Channel 2RU Main Station with Built-in Speaker
This product is no longer available
Features
- Supports up to 55 belt-packs or 10 speaker stations
- Automatic short-circuit protection
- Visual and audible call signalling
- 3 interruptible IFB channels
- Individual volume controls for each channel
- Program feed to both channels with Program Interrupt
Description
Specifications
| 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 |
| Environmental | 32 – 122°F (0 – 50°C) |
| Dimensions | 483 x 88 x 267mm |
| Weight | 2.8kg |
In The Box
- Clear-Com MS-704 4-Channel 2RU Main Station with Built-in Speaker
Reviews
(no ratings yet)Details
- Product: Clear-Com MS-704 4-Channel 2RU Main Station with Built-in Speaker
- Manufacturer: Clear-Com
- Model: MS-704
- SKU: MS-704
- RM Product #: 100963
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