Clear-Com RM-704 4 Channel Intercom 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.

Key Features

• Four Independent Intercom Channels for ultimate flexibility
• Microprocessor-Controlled Logic assures maximum communications power
• 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

Technical Specifications

Panel Microphone Input
Input Type
Electret
Input Impedance
>=2K OHMS
Mic Limiter Threshold
0dBu ±3dB
Mic Limiter Range
>= 20dB
Headset Microphone Input
Input Type
Dynamic
Input Impedance
>= 1K OHMS
Mic Limiter Threshold
0dBu ±3dB
Mic Limiter Range
>= 17dB
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
Partyline Output
Off Noise
< -74dBu
Output Impedance
>10K OHMS
Partyline 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 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 - 122F (0 - 50C)
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)