HMS-4X Main Station Highlights:
Front Panel
Back Panel
dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS.
Connectors
Intercom Line: (4) 3-pin XLR–M
Headset: 4-pin XLR–M
USB: Type A & Micro AB
Program: 3-pin XLR–F
SA (Stage Announce): 3-pin XLR–M
Hot Mic / IFB Interface: 1/4 in. (0.64 cm) phone jack
GPI: 25 way D-type female
Microphone Pre-amplifier
Headset Mic Impedance: 200 Ω (Dynamic)
Headset Mic Voltage 1.7V (Electret selectable)
Limiter Range: 20dB
Mic Gain: 58dB (selectable)
Frequency Response: 200Hz – 12kHz contoured for intelligibility
Distortion:Noise:
Headphone Amplifier
Load Impedance: 32 - 2,000 Ω
Output Level: +12dBu before clipping
Max Gain: 12dB
Frequency Response: 100Hz - 20kHz ±2dB
Distortion: Noise: Headphone Limiter: -12dBu (selectable)
Sidetone: -18dBu (selectable)
Loudspeaker Amplifier
Load Impedance: 4 Ω
Output Level: +18dBu before clipping
Max Gain: 18dB
Frequency Response: 200Hz - 20kHz ±2dB
Distortion:Noise:
Program Line Input & 4-wire Option Module Inputs
Maximum Level Before Clipping: 18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ
Frequency Response: 20Hz - 20kHz ±2dB
Distortion:Noise:
Stage Announcer Output & 4-wire Option Module Outputs
Maximum Level Before Clipping: 18dBu
Nominal Output Level: 0dBu(selectable)
Output Impedance: Frequency Response: 200Hz - 12kHz ±2dB
Distortion:Noise:
Hot Mic Output
Maximum Level Before Clipping: 12dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: Frequency Response: 200Hz - 12kHz ±2dB
Distortion:Noise:
Partyline
Maximum Level Before Clipping: 10dBu
Nominal Input Level: -18dBu (selectable)
Input Impedance: >= 10KΩ bridging
Frequency Response: 200Hz - 20kHz ±2dB
Distortion: Noise: Auto-nulling and Echo Cancellation
RTS/Clear-Com Selectable
Termination: External
Power: 30V max external
Main Power
Input Voltage Range: 100 - 240VAC
Input Frequency Range: 50 - 60Hz
Input Power: Output Voltage: +/-29VDC ± 1V
Output Current per Channel: 1.5A (Continuous)
Environmental
0˚C - 50˚C (32˚F - 158˚F)
0 - 90% relative humidity
Dimensions
19in W x 1.75in H x 13in D