Listen Technologies Digital IR 8-Channel Transmitter

Listen Technologies Digital IR 8-Channel Transmitter

Listen Technologies Digital IR 8-Channel Transmitter

B&H # LIT8 MFR # T8
Listen Technologies Digital IR 8-Channel Transmitter

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Listen Technologies T8 overview

  • 1Description

The Digital IR 8-Channel Transmitter from Listen Technologies receives the audio input signals and modulates the audio onto digital carrier signals for distribution to digital IR radiators. All system settings such as number of channels, channel quality, and input sensitivity are set on an LCD menu. There are four BNC outputs to connect the signal to the radiators with RG58 cable.

The capacity of the transmitter is 8 mono standard quality channels, 4 mono perfect quality channels, 4 stereo standard quality channels, 2 stereo perfect quality channels or a mixture of the above.

The audio is inserted via standard, unbalanced phono inputs and there is a headphone jack for input audio monitoring. Two additional auxiliary XLR balanced audio inputs are available for music, floor language, or for life safety messages when in emergency override mode.

High-quality stereo audio
Up to 8 mono or 4 stereo channels
Up to 120 radiators per transmitter
Emergency override for life safety messages
Headphone jack for input audio monitoring
Built-in infrared emitters for IR audio monitoring
Language name assignments for each audio channel
Adjustable sensitivity control per audio input
Bypass mode allowing multi room configurations
Music mode provides music to all channels at the same time
In the Box
Listen Technologies Digital IR 8-Channel Transmitter
  • 2 x Rack Ear Brackets
  • RU Ventilation Spacer
  • Power Line Cord
  • 4 x Dual Phono to Dual Phono Cable
  • Ethernet Cable
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Listen Technologies T8 specs

    Inputs 8 Unbalanced RCAs, -6 to 6 dBV nominal
    2 Balanced XLRs, 6 to 18 dBV nominal
    Frequency Response 20 Hz to 10 kHz (-3 dB)
    20 Hz to 20 kHz (-3 dB)
    THD <0.05% @ 1 kHz
    Cross Talk Attenuation: >80 dB @ 1 kHz
    Dynamic Range >80 dB
    Signal to Noise Ratio A Weighted: >80 dB
    Power Switch Mains on/off switch on the front panel
    Buttons Four buttons for menu navigation and selection
    Emergency Contact on the back, when closed an emergency override message is broadcast
    LCD 256 x 32 LCD display for status info and configuration
    Alarm 2-pin Euro (contact closure)
    Extension 4-pin Euro (merging mode)
    Socket IEC socket with in-line fuse, matching 5.58' mains cable
    Radiator Output: 4 x BNC female connectors to daisy chain radiators
    Inputs Master Transmitter: 1 x BNC female connector to connect master transmitter when in slave mode
    IR Interface
    IR Wavelength 870 nm
    Protocol DQPSK, according to IEC 61603-7
    Frequency Modulation: Carriers 0 to 5: 2 to 6 MHz (according to IEC 61603-7)
    Carrier Frequency 2.333, 3.000, 3.666, 4.333, 5.000, 5.666, 6.333 and 7.000 MHz
    Outputs 4 x BNC HF, 1 Vpp, 6V DC, 50 ohm, 30 radiators per output, max cable length 2,950'
    Inputs 1 x BNC 1 Vpp Nominal, 10 mVpp Minimum, 50 Ohm
    Power Supply Voltage 110-230 VAC, 50-60 Hz
    Power Consumption 55 W nominal, 29 W standby
    Operating Temperature 32 to 113°F (0 to 45°C)
    Storage Temperature -40 to 158°F (-40 to 70 °C)
    Relative Humidity <95%
    Color Black
    Mounting Free-standing or mounted in a 19" (48.26 cm) rack
    Dimensions 3.9 x 17 x 12.8" (99 x 430 x 325 mm)
    Weight 16.5 lb (7.48 kg)

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