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Clear-Com RM-704

4-Channel Headset/Speaker Remote Station
Item #:RM-704 
Available: Special Order/Direct Ship
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.
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Technical Specifications


Panel Microphone Input
Input Type: Electret
Input Impedance: >=2K ohm
Mic Limiter Threshold: 0dBu ±3dB
Mic Limiter Range: >= 20dB

Headset Microphone Input
Input Type: Dynamic
Input Impedance: >= 1K ohm
Mic Limiter Threshold: 0dBu ±3dB
Mic Limiter Range: >= 17dB

Program Line Input
Maximum Level before Clipping: >= 20dBu
Input Impedance: >= 5K ohm

Headset Output
Load Impedance: >= 8 ohm
Output Impedance: <= 25 ohm
Output Limiter Threshold: +5dBu ± 3dB
Maximum Output Level before Distortion: >= 17dBu

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

Partyline Output
Off Noise: < -74dBu
Output Impedance: >10K ohm

Partyline Input
Crosstalk: < -60dB
Max level before Clipping: >= 12dBu
Sidetone Null Capability: > 25dB

Stage Announce/Balanced Line Out
Type: Balanced
Output Impedance: >= 200 ohm
Load Impedance: >= 600 ohm

IFB/Hot Mic
Type: Unbalanced
Output Impedance: 150 ohm
Load Impedance: >= 600 ohm

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

DC Power
Input Voltage Range: 20-30 VDC
Input Current (Idle): <=165 mA
Input Current (Max): <=195 mA

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

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
(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) Speaker ON-OFF switch
(1) Speaker volume control
(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 - 122šF (0 - 50šC)

Dimensions
19 in. W x 3.5 in. H x 10.5 in. D
(483 mm x 88 mm x 267 mm)

Weight
10.07lbs. (4.58 kg)