Clear-Com MS-704 Encore 4-Channel Headset / Speaker Station Control Panel with Microphone Input

The 704 series is Clear-Com’s most advanced party-line intercom system. Each station is a four-channel intercom with superior audio and versatile channel access to provide unmatched communication flexibility.

Features:

Four Independent Intercom Channels for ultimate flexibility
Microprocessor-Controlled Logic assures maximum communications power
Universal Voltage Power Supply for 100 - 240 VAC operation, with shortcircuit protection on each channel
Linking Control instantly links channels together in “super party line"
Separate Talk and Listen Buttons for each channel
Individual Listen Volume Controls for each channel
“All-Talk" Function permits instant communications to all four channels
Four Separate Program Inputs are electronically balanced
Three Interruptible IFB Channels make talent cueing easy
“Announce" Button with Relay for external paging
Visual “Call Signaling" alerts users when others want to speak to them
Wide-Range High-Output Speaker for optimum clarity in all acoustic environments
“Hot-Mic" Output allows easy connection to external IFBs
Adjustable Mic Proximity Compensation reduces acoustic feedback
Superior “Contoured" Audio insures excellent voice intelligibility under all noise conditions, including high-noise environments
LED buttons for talk, call, announce, link, all talk, and mic on
Remote Mic Kill switch turns off the microphone talk circuits"

Panel Microphone Input
Input Type	Electret
Input Impedance	>=2K Ohms
Mic Limiter Threshold	0dBu ±3dB
Mic Limiter Range
(MS-704 & RM-704)	>= 20dB
Mic Limiter Range (SB-704)	>= 15dB
Headset Microphone Input
Input Type	Dynamic
Input Impedance	>= 1K Ohms
Mic Limiter Threshold	0dBu ±3dB
Mic Limiter Range
(MS-704 & RM-704)	>= 17dB
Mic Limiter Range (SB-704)	>= 15dB
Program Line Input Maximum Level before Clipping	>= 20dBu
Input Impedance	>= 5K Ohms
Headset Output
Load Impedance	>= 8 Ohms
Output Impedance	<= 25 Ohms
Output Limiter Threshold	+5dBu ± 3dB
Maximum Output Level before Distortion	>= 17dBu
Speaker Output
Load Impedance	>= 4 Ohms
Max Output Level before 1% Distortion	20dBu ± 2dBu
Party Line Output
Off Noise	< -74dBu
Output Impedance	>10K Ohms
Party Line Input
Crosstalk	< -60dB
Max level before Clipping	>= 12dBu
Sidetone Null Capability	> 25dB
Stage Announce/Balanced Line Out
Type	Balanced
Output Impedance	>= 200 Ohms
Load Impedance	>= 600 Ohms
IFB/Hot Mic
Type	Unbalanced
Output Impedance	150 Ohms
Load Impedance	>= 600 Ohms
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	00 - 10KHz ± 3dB
Party Line - Speaker Out	300 - 10KHz ± 3dB

MS-704 Front Panel Features : Headset Connector ; Panel Mic Connector ; Mic on Switch/Indicator ; Mic Select Switch ; Remote Mic Kill ; Link Button ; All Talk Buton ; Announce Button ; Call Button ; Listen Button ; Talk Button ; Volume Control ; Speaker On/Off Switch ; Loudspeaker ; Short Indicators ; Panel Mic Gain ; Sidetone Adjust ; Program Interrupt Select (IFB) ; Auto Call Select ; Auto Talk/Listen Select ; Latch Disable Select .

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Clear-Com MS-704 Encore 4-Channel Headset / Speaker Station Control Panel with Microphone Input

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