Clear-Com RM-704

4-Channel Headset/Speaker Remote Station

4-Channel Headset/Speaker Station Rack Mount (2RU)

Remote station provides four independent intercom channels, with programmable front-panel buttons for versatility. Separate volume controls for each channel and four separate audio program inputs via DB-15 Connector. Three IFB channels for talent cuing and announce button/relay for paging. Powered by the intercom line.

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

Product Code: RM704

Technical Details

Technical 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: >= 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: 180Ω
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

Power
Input Voltage Range: 20-30 VDC
Input Current (Idle): <= 90mA
Input Current (Max): <=110mA

Rear Panel Connectors
Intercom: (2) XLR-3M (1 per channel)
(2) XLR-3F (1 per channel)
Hot Mic / IFB Interface: (1) 1/4 in. (0.64 cm) phone jack
Accessory: (1) DB-15F

Rear Panel Controls
(12) Option 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) Announce button
(2) Program send level controls
(1) Program monitor level control
(2) Listen controls
(2) Sidetone null controls
(2) Talk buttons
(2) Call buttons
(1) Speaker ON-OFF switch

Environmental
32 - 122˚F (0 - 50˚C)

Dimensions
19 in. W x 1.75 in. H x 7.0 in. D
(483 mm x 44.5 mm x 178 mm)

Weight
5.2 lbs. (2.36 Kg)