Comtek CC-75 MLD Large Area Assistive Listening System


  • Includes Transmitter Base Station
  • Includes 2 Wireless Receivers
  • Includes 2 Earphones
  • AutoSmart Tuning Receivers
  • Flash Memory Programmable
  • Up to 100 Hours Battery Life
SKU: CC-75MLD Category: Tags: , , ,


The Comtek CC-75 MLD Large Area Assistive Listening System includes a base station transmitter with rack mount, two receivers, two earphones, a remote dipole antenna, and a 12-volt power supply. The system can also be used with optional stereo or mono headphones, direct audio input cords with hearing aids, cochlear implant processors, and neckloops for hearing aids with a T coil. The CC-75 MLD is designed for use in scenarios where multiple transmitters are operating independently in the same building.

The base station transmitter is flash-memory programmable for quick setting recalls and is designed for permanent installation. The receivers are powered by two AA batteries for up to 100-hours and feature AutoSmart tuning that allows them to tune to the nearest compatible receiver. You can integrate additional PR-75 receivers into the system depending on your needs.


Operating Frequency 72.02 to 75.98 MHz
Frequency Stability Better than 0.002% (Digitally Synthesized, Crystal Controlled)
RF Output 120 mW (Maximum for FCC Part 90)
Frequency Response 80 Hz to 10 kHz
Distortion < 0.5%
Compander Companded or Non-Companded Operation
Limiter Peak Type
Connectors 1 x XLR/TRS Combo Input
1 x BNC RF Output
1 x Power Connector
Indicators 1 x LED VU Meter
1 x Antenna Load LED
1 x Power LED
Antenna 19″ (483 mm) Telescopic Antenna, Top Mount
BNC Antenna Connector
Power Requirements 12V, AC or DC, 200 mA Maximum
Dimensions (WxHxD) 3.75 x 1.60 x 5.25″ (9.5 x 4.1 x 13.3 cm)
Weight 15.25 oz (432 g)
Audio Output Headset output 200 mW average (impedance as low as 16 Ω)
Connector 1x 1/8″ (3.5 mm) stereo/mono audio output connector and charging input
0.1″ (2.5 mm) stereo connector for I/O data programming
Indicator Lights Multi-function LED (channel-seeking, received signal, no signal, low battery, power, battery status, R.F. signal on/off)
Controls Volume control (50 dB range)
Automatic on/off when headphone plugged in/unplugged
One-button tuning control (AST)
Audio Frequency Response 100 Hz to 10 kHz (±3 dB)
Operating Radio Frequency 72 to 76 MHz
Frequency Stability 0.002% frequency synthesized crystal controlled
RF Sensitivity 1.3 μV for 38 dB SINAD
Ultimate Quieting Better than 75 dB
Deviation Acceptance Up to 10 kHz
FM Non-Companded FM Deviation up to 40 kHz
Antenna Integral with headphone cable
Battery Life 100 hours with alkaline batteries
Power Requirements 2x AA batteries
FCC Compliance Complies with Part 15 of FCC rules for scanning receivers
Dimensions 1.06 x 2.5 x 3.25″ (2.7 x 5.7 x 8.26 cm)
Connector 1/8″ (3.5 mm ) Mono Mini Plug
Cable Length 30″ (0.75 m)

Additional information

Weight 6.00 lbs


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