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The white ListenIR iDSP Standard System from Listen Technologies is an infrared system designed for assistive listening compliance in venues with up to 100 seats. It includes one Listen Technologies Stationary IR Transmitter, one Universal Rack Mounting Kit, one Stationary IR Radiator, four Intelligent DSP IR Radiators, four Intelligent Ear Phone/Neck Loop Lanyards, four Universal Ear Speakers, one Assistive Listening Notification Signage Kit, one USB to micro-USB cable, one Intelligent 12-Unit Charging Tray, one Intelligent Cable Management Unit, one container of disinfecting wipes, and one dispensing log book.
This LT-82 1-Channel Transmitter from Listen Technologies takes the desired audio signal and transmits the signal via coaxial cable to one or more LA-140 IR radiator-emitters. The LT-82 can be operated in mono or stereo on one of four different carriers, and up to four LT-82 units may be connected to provide up to four mono or stereo carriers to the radiator(s). The LT-82 generates DC power to power up to two LA-140 radiator-emitters. Two LT-82 units can be rack-mounted in a single rack space using the LA-326 rack mounting kit. The LT-82 may be used for government compliance (such as ADA), assistive listening, language interpretation, live theater, houses of worship, courtrooms, secure rooms, and for auditory description.
Secure wireless communication, suitable for applications where isolation of the signal is important
Up to four mono or stereo channels; no need to sacrifice multiple channels to achieve stereo transmissions (one LT-82 is required for each channel)
Transmitter can power two radiators/emitters (LA-140), using Cat5 cabling
Easy to specify, install, and use
Performance ensures clear sound for listeners
True stereo audio (left and right) is transmitted on a single carrier frequency
The LA-326 Universal Rack Mounting Kit from Listen Technologies is compatible with the company's LT-800 Stationary Transmitter, LT-803 3-Channel Stationary Transmitter, LT-82 Stationary IR Transmitter, and LR-100 Stationary Receiver/Amplifier. It allows for both single and dual mounting, and includes hardware for a large variety of configurations.
Listen Technologies LA-140 Stationary IR Radiator (White)
The white LA-140 Stationary IR Radiator from Listen Technologies is designed for use with the LT-82 transmitter and allows you expand your assisted listening system's infrared coverage. Each LA-140 covers up to 10,000 ft², and two units can be powered directly from the transmitter. The unit can also be powered from an LA-205 power supply (available separately).
The radiator is easy to install and hardware is included for mounting the unit to a wall, ceiling, desk, mic stand, or tripod. Power is supplied through Cat 5 cabling, with standard coaxial cabling for the RF signal. Two LA-140 units can be mounted together horizontally or vertically, doubling the power of your system without taking up an excessive amount of space. Built-in delay compensation allows you to make adjustments when using multiple LA-140 units together to prevent phasing problems and signal cancellation.
Covers up to 10,000 ft² / 929 m²
Powered by LT-82 transmitter or LA-205 power supply (both available separately)
Two radiators can be powered from a single transmitter or power supply, eliminating the need for multiple cables
Two units can be horizontally or vertically mounted together, doubling the power in a small footprint
Mounting brackets and hardware are included for a variety of mounting options, including wall, ceiling, mic stand, and tripod mounting
Radiator diodes are automatically turned off if no audio signal is present at the transmitter after 30 minutes, saving radiator diode life
Delay compensation ensures there is no drop out in the IR signal
Listen Technologies Intelligent DSP IR Receiver
The Listen Technologies Intelligent DSP IR Receiver is for use with the company's infrared assisted listening systems. The unit features two 3.5mm stereo output jacks that can drive two pairs of headphones or a single LA-430 lanyard for T-coil users (both available separately). The result is a convenient listening experience in small-to-medium places where it's difficult to hear—including theaters, boardrooms, classrooms, courtrooms, houses of worship, and more.
The receiver has an OLED display that shows unique channel names, battery status, channel status, volume status, and charge activation. The micro-USB connection is used with the free iDSP software suite for set up, programming, inventory management, firmware updates, and charging via any standard USB port. A field-replaceable, lithium-ion battery is included with the unit that powers it for up to 8 hours.
High-sensitivity infrared receiver for assisted listening systems
Use with LA-430 neck loop/lanyard (available separately) with DSP loop driver to improve the listening experience for T-coil users
The Listen Technologies LA-430 Intelligent Earphone Neck Loop Lanyard is an integrated neck loop that works with any of the company's iDSP receivers and any of their earphones (available separately) and uses a DSP loop driver to deliver an improved listening experience for people who have hearing aids and cochlear implants with telecoils. It is capable of providing the proper field strength and a flat frequency response from the neck to the listening plane of the hearing aid—in accordance with IEC60118-4 standards. An automatic gain control circuit with a dynamic range of 36 dB optimizes speech and provides clear, intelligible audio.
The LA-430 plugs into an iDSP receiver and easily slips over the head to be worn around the neck like a lanyard; a quick release ensures immediate removal if necessary. The 3.5mm earphone jack on one side provides a connection to Listen's universal earphones or a similar pair of earbuds. The LA-430 enables venues to meet legislative requirements for assistive listening and deliver an enjoyable listening experience in places where it's difficult to hear, such as theaters, lecture halls, concert venues, and houses of worship.
Integrated neck loop that incorporates an advanced DSP loop driver for an improved listening experience for people who have hearing aids and cochlear implants with telecoils
Capable of providing the proper field strength and a flat frequency response according to IEC60118-4
Integrated 3.5mm earphone jack provides connection to earphones for use as a lanyard
Makes it easy for venues to meet legislative requirements for assistive listening and deliver an exceptional listening experience
The dark grey LA-401 Universal Ear Speaker from Listen Technologies is designed to provide maximum audio quality and freedom of movement without cable snags. The universal style easily fits over your ear and offers a comfortable, secure fit on either your left or right side. The open design allows you to hear direct sounds, as well as enabling you to use the speaker along with hearing aids. It is constructed of hard plastic which can be easily and hygienically cleaned and reused. The speaker can be used with the short integrated neck loop/lanyard for minimizing cable tangles, or with the included extension cord for concealing your wires in your pocket.
Provides optimal audio and the freedom of movement without cable snags
Universally styled to easily fit comfortably over the right or left ear
Open design allows the user to hear direct sounds and can be used with hearing aids
Use with integrated neck loop/lanyard or 3.5mm extension cable
Hard plastic can be easily and hygienically cleaned and reused
Listen Technologies LA-304 Hard Plaque Assistive Listening Notification Signage Kit
The Listen TechnologiesLA-304 Hard Plaque Assistive Listening Notification Signage Kit provides venues with signage identifying the availability of assistive listening devices. It can be easily displayed in a window using the included static cling window sticker.
Informs people that assistive listening devices are available
Allows you to place a hard placard or static cling for the window
The black LA-381-01 Intelligent 12-Unit Charging Tray from Listen Technologies is compatible with all of the company's iDSP products, and is designed for streamlining the collection, care, charging, and dispensing of your iDSP units. The LA-381-01 features tension locking charging slots for proper charging contact and security. Each slot can also accommodate additional items, such as an ID card, while the receiver is being used. The charging tray can be mounted to a wall, drawer, rack, or table top for easily dispensing the iDSP devices.
Drop-in charging and dispensing station for streamlined dispensing, collecting, and care of up to 12 iDSP devices
Can be mounted on your wall, drawer, rack, and table top for easy and convenient dispensing
Tension locking ability to ensure proper charging contact and security
Includes Quick Reference Laminated Card
Listen Technologies LA-382 Intelligent Cable Management Unit
The LA-382 Intelligent Cable Management Unit from Listen Technologies is designed to be used with the company's LA-381 Intelligent 12-Unit Charging Tray for streamlined dispensing, collecting, and care of your iDSP headsets, ear speakers, and integrated lanyards. The base of the LA-382 can be connected to the charging tray or mounted to a flat table top for a fixed installation. The cable management arm can be connected facing inward over the charging units, or outward behind the charging units.
Use with charging tray for streamlined dispensing, collecting, and care of iDSP headsets, ear speakers, and integrated lanyards
Flexible mounting options helps keep cables organized and tangle free
This individual packet contains twenty Disinfecting Wipes from LISTEN Technologies. They are lint free and highly absorbent. The water-based formula makes them safe to use on plastics, laminates, metals, Plexiglas screens and rubber surfaces. They are also bactericidal, tuberculocidal, virucidal and have been independently lab tested to disinfect quickly, and are EPA registered and approved in all fifty states.
Fast acting, safe and gentle solutions assure effective cleaning
Disinfecting solution won't damage surface and works in any environment
EPA registered and approved
Listen Technologies Dispensing Log Book
This Dispensing Log Book from LISTEN Technologies makes it easy for venues to have a streamlined process for dispensing, collecting and managing LISTEN Technologies' assistive-listening devices. You can record up to 582 entries in this conveniently-sized book.
Makes it easy for venues to have a streamlined process for dispensing, collecting and managing LISTEN assistive listening devices
Record up to 582 entries in a conveniently-sized book that's easy to store
Input 1: 1x Female XLR or 1/4" combo connector, balanced, 0 / -55 dBu (line/mic) nominal input level adjustable, -30 / +21 dBu (line/mic) maximum input level, impedance 20 k / 1 kOhm (line/mic), phantom power 12 V DC - on rear panel
Input 2: 2x phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohm - on rear panel
Input 1, Input 2, mixed output on rear panel: 2x Phono connectors, unbalanced, -10 dBu nominal output level, +19 d Bu maximum, impedance 10 ohms
Compression can be turned on or off
Front Panel: Power, Test Tone on/off, Channel up/down, Input Level, Transmit Level, Contour, Monitor Level
Rear Panel: Input 1 Level (Line, Mic, Mic-Phantom Power), Input 2 Level (-10/+10 dBu)
Internal Adjustments: Compression ratio for audio processor. Slope adjustable from 1:1 to 4:1. Default 2:1
Programming: Stereo on/off, Processing on/off
Unit Power: Red LED illuminates when the unit is powered up (front panel)
Input 1, Input 2, Transmit Level: indicates Input 1, Input 2, and Transmit audio levels. 10 segment LEDs (8 green, 2 red)
Stereo: Indicated by a green LED when on (front panel)
Processing: Indicated by a green LED when on (front panel)
RF Carrier: Indicates carrier is active on the LCD Display (front panel)
LCD: Channel designation, lock status, RF Carrier, programming (front panel)
Test Tone: Red LED illuminates when test tone enabled (front panel)
Audio Carrier Frequencies
Number of Channels
4 Channels, selectable one channel per transmitter (mono or stereo)
+/- 0.005% stability 32 to 122ºF / 0 to 50ºC
Transmitter stability: 50 PPM
2x BNC connectors for connection to radiator(s) and/or additional transmitter(s); 50 mV, 50 ohm, -15 dBm
1x BNC connector, for connection from additional transmitter(s); 50 mV, 50 ohm, -15 dBm
In-line power supply, (part number LA-205)
Power Supply Input
100 to 240 V AC, 47 to 63 Hz
Power Supply Output
30 V DC, 1.5 A
Power Supply Connector
2x RJ-45 jack, for remote-powering up to two radiators
North America: Type B (LT-82-01)
Asia, UK: Type G (LT-82-02)
Europe: Type J (LT-82-03)
1U high, 1/2U space wide
One or two transmitters can be mounted in a single rack space.
Operation Temperature: 14 to 104°F / -10 to 40°C Storage Temperature: -4 to 122°F / -20 to 50°C
Relative Humidity: 0 to 95% relative humidity, non-condensing
FCC Part 15, Industry Canada, CE, RoHS, UL
1.75 x 8.5 x 9.13" / 4.5 x 21.5 x 23.0 cm
With Power Supply: 3.8 lb / 1.72 kg
Unit Weight: 2.6 lb / 1.18 kg