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MCE325 Specifications
General
Bridging Impedance (to line) 10,000 ohms typical
Noise Contribution to 200-ohm Line -90 dBu
Call Signal Frequency 20 kHz, crystal controlled
Talk-off Frequency 24 kHz, crystal controlled
Microphone Preamplifier
Maximum Voltage Gain 54 dB
Frequency Response 100 Hz to 8,000 Hz, ±3 dB
Input Impedance 1,000 ohms
Limiter Range 30 dB
Headphone Amplifier
Maximum Voltage Gain 30 dB
Frequency Response 100 Hz to 8,000 Hz, ±3 dB
Headphone Impedance 50 to 600 ohms
Output Power 150 mW into 50 ohms
Output Voltage Level 8 Vp-p
Speaker Amplifier
Maximum Voltage Gain 30 dB
Frequency Response 100 Hz to 8,000 Hz, ±3 dB
Speaker Impedance 8 to 16 ohms
Output Power per Amplifier 5W into 8 ohms
Output Voltage Level 16 Vp-p
Power and Mechanical
Power Requirements 115 to 230 VAC, 20 VA max,
12 to 25 VDC, 100 to 125 mA quiescent, 900 mA max
Dimensions 1.72” H x 8.2” W x 8” D (44 mm x 208 mm x 203 mm)
Weight 4.25 lbs (1.93kg)
Material/Finish Thermo-plastic front panel, aluminum case, light gray
finish