dBu is an absolute measurement. 0dBu is referenced to 0.775 volts RMS
Headset Microphone Input
Input Type: Dynamic, Electret
Input Impedance: 1kΩ
Max Input Level: -60dBu to -40dBu switchable
Headset Output
Load Impedance: >= 4Ω
Output Impedance: 47Ω
Output Limiter Threshold: -4dBu, + 3dB
Max Output Level Before Distortion: -4dBu
Partyline Output
Off Noise: <-80dBu
Output Impedance: >10kΩ
Maximum Output: -4dBu
Partyline Input
Maximum Level Before Clipping: +3dBu
Sidetone Null Capability: >25dB
Frequency Response
Dynamic Mic - Partyline: 40Hz - 22kHz, + 3dB
Dynamic Mic - Line Out: 20Hz - 22kHz, + 3dB
Dynamic Mic - 4-Wire Out: 100Hz - 22kHz, + 3dB
IFB Input - Headset Out: 100Hz - 22kHz, + 3dB
Partyline - Headset Out: 150Hz - 22kHz, + 3dB
Max Distortion Dynamic Mic - Partyline: <0.1%
Dynamic Mic - Line Out: <0.05%
IFB Input - Headset Out: <0.5%
Partyline - Headset Out: <0.1%
Noise
Dynamic Mic - Partyline: <-75dBu
Dynamic Mic - Line Out: <-85dBu
IFB Input - Headset Out: <-65dBu
Partyline - Headset Out: <-65dBu
Max Gain
Dynamic Mic - Partyline: 41dB + 3dB
Dynamic Mic - Hot Mic Out: 40dB + 3dB
IFB Input - Headset Out: 40dB/22dB (switchable) + 3dB
Partyline - Headset Out: 34dB + 3dB
Rear Panel Connectors
Headset: XLR-6F-Switchcraft pin layout*
Compatible with balanced microphone headsets such as CC-400-X6.
Microphone Out: XLR-3M
Intercom: XLR-3M/F
IFB: XLR-3F
Power: 2.1mm jack
Front Panel Controls and Indicators
(1) Mute button
(1) Mute indicator LED (red)
(1) Talk back button
(1) Talk back indicator LED (green)
(1) Interrupt level control
(1) Non-Interrupt level control
Power
Intercom/IFB Voltage: 25 - 30V DC
Current: 100mA idle, 120mA max
DC Adapter: 100 - 240V
Voltage: 30V @ 0.5A
Environmental
32° – + 122°F (0° – + 50°C)
Dimensions
6 x 3 x 8in (WxHxD)
(152 x 76 x 203mm)
Weight
2.0lbs (0.9kg)
*IMPORTANT: XLR Connector Compatibility
Clear-Com products featuring 6-pin XLR connectors utilize the Switchcraft XLR pin layout. Compatible connectors are available from manufacturers, such as Switchcraft and Neautrik, yet compatibility must be verified. Neutrik 6-pin XLR connectors must include “S” in the part number to ensure compatibility.