LISTEN TECHNOLOGIES LA-404 EARPHONE Single in-ear, 3.5mm TRS jack, dark grey

A selection of ListenIR complete infrared system solutions from Listen Technologies, suitable for a variety of room sizes such as classroom, conference rooms, boardrooms, or jury deliberation suites.

LS-88

Designed for small to medium spaces where the room capacity is around 50 people. With flight case.

LS-88 comprises of:

• 1x LT-84 ListenIR Transmitter/Radiator Combo
• 2x LR-4200 IR Intelligent DSP IR Receiver
• 2x LA-430 Intelligent Ear Phone/Neck Loop Lanyard
• 2x LA-401 Universal Ear Speaker
• 1x LA-277 Conference Microphone
• 1x LA-338 Table Top Tripod
• 1x LA-346 Carrying Case
• 1x LA-423 4-Port USB Charger

LS-90

Designed for small to medium spaces where the room capacity is around 50 people.

LS-90 comprises of:

• 1x LT-84 ListenIR Transmitter/Radiator Combo
• 2x LR-4200-IR Intelligent DSP IR Receiver
• 2x LA-430 Intelligent Ear Phone/Neck Loop Lanyard
• 2x LA-401 Universal Ear Speaker
• 1x LA-423 4-Port USB Charger

LT-82 Transmitter

ListenIR LT-82 is a single channel transmitter that is capable of operating in either mono or stereo modes. The stationary infrared transmitters can be daisy-chained together to transmit up to four channels simultaneously on 2.3/2.8/3.3/3.8MHz. The channel selection can be locked by the engineer to avoid tampering whilst a timer shuts off the carriers after 30 minutes when no audio is present at the transmitter. With an audio frequency response of 63Hz to 15kHz, +/-3db, the transmitter allows a single balanced 3-pin XLR input along with unbalanced RCA (phono) inputs. With automatic gain control and limiting, the transmitter has controls for input level, transmission level, contour level, and stereo on/off. LT-82 also provides power to up to two LA-140 radiators. via CAT-5e cable.

Included accessories: LA-205 30V DC power supply, LA-89 coaxial cable, quick start guide.

Dimensions (HxWxD): 45 x 215 x 230mm. Weight: 1.18kg

LT-84 Transmitter/Radiator

LT-84 is a two-channel infrared transmitter and radiator combined within a single piece of hardware. It can provide line of sight coverage of up to 30,000 square feet (2787square metres) when combining with the LR-4200-IR belt pack receiver. The range can be improved by linking up to four LA-141 expansion transmitters, a maximum of two per expansion link output, by Cat-5e cable. The user can select one of four FM wide band frequencies for each of the two channels. Available frequencies include 2.3MHz, 2.8MHz, 3.3MHz, and 3.8MHz. The radiator can be mounted in a number of ways including on walls, ceiling or table using the included LA-344 mounting hardware kit.

The front panel has no controls, only the infrared radiator which is housed behind the infrared transparent panel. The rear panel has all user controls and audio/data inputs and outputs for the two channels and links. Both channels have a 3.5mm balanced jack input suitable for electret microphones, dual unbalanced RCA (phono) inputs for an audio input from other hardware such as CD player or DAB radio, and a 3-pin Phoenix style detachable terminal block connector for a balanced audio input. Controls for each channel include a rotary level control with LED level indicators, recessed rotary frequency selector and sliding transmission on/off control. A separate sliding switch situated next to the 12V DC power supply input controls power; it has three positions, off, on with LED status lights, on with no LED status lights, the latter for situations where flashing LEDs may cause distraction. Two RJ-45 output links can be used to connect option LA-141 expanders with a maximum connection cable length of 30m.

Included accessories: LA-210 12V DC power supply, LA-344 mounting hardware, 2x Phoenix type connectors, quick start guide, LA-303 signage.

Dimensions (HxWxD): 38.1 x 272 x 105mm. Weight: 0.4kg.

LT-84-D Transmitter/Radiator, Dante

This has the same functionality as LT-84, however it is Dante compatible via the LA-465 Dante adapter.

LA-140 Radiator

A compact, stationary radiator/emitter that is available in either grey or white finish and designed for use with the LT-82 transmitter to expand the coverage. The radiator can be mounted in vertical or horizontal orientation, and the included mounting hardware allows for wall, ceiling, desk, microphone stand, or tripod mounting. LA-140 has a maximum coverage of 3,716m2, and up to two LA-140s can be powered from a single LT-82 transmitter via CAT-5e cabling.

Included accessories: Mounting hardware (wall/ceiling/desk/mic stand/tripod), 1x 7.6m colour matched coax cable, 1 x 7.6m colour matched CAT-5 cable, quick start guide.

Dimensions (HxWxD): 140 x 66 x 203mm. Weight: 0.95kg

LA-141 Transmitter expander

Up to four LA-141 transmitter expansion units can be connected to a single LT-84 transmitter-radiator to expand the coverage to avoid dead-spots or reach receivers which are hidden from line of sight . The rear of the unit has two RJ-45 link connections for expansion, a two way switch to control the LED indicator on/off status and a recessed rotary control for each channel offering delay compensation. A compensation table listed in the user manual shows the settings to use dependent upon frequency and cable length.

Included accessories: 1x 7.6m CAT-5e cable, LA-344 mounting hardware, quick start guide.

Dimensions (HxWxD): 38.1 x 272 x 105mm. Weight: 0.28kg.

LR-4200-IR

The LR4200IR infrared receiver is a compact belt pack, designed to be used in conjunction with the LT-84 transmitter radiator to provide listening via earphones, headphones or LA-438/LA-439 neck loop.

The front of the unit has an OLED display that shows the selected channel number or user set name, or selected channel functions. The channel select function can be accessed by holding down the volume up and down buttons together for five seconds. A momentary press of the power button, situated on the top edge of the receiver, will exit from the settings screen. Two 3.5mm jack sockets are located on each side of the top edge to connect compatible headphones such as the LA-401, LA-402, LA-403 or LA-404. Two pairs of earphones/headphones can be connected (one to each output) but this is not the intended purpose of the two outputs: The LA-430 neck lanyard has two 3.5mm jack connectors and therefore can use both connections to complete the induction loop for use with compatible hearing aids.

The rear of the unit has a LA-431 belt clip which can be removed by way of single screw when not necessary. A Micro USB socket can be used to charge the internal Lithium-Ion battery with the LA-423 charger and LA-422 USB type A to micro-B USB cable. A charging contact on the base of the unit allows the user to charge via the LA-381 twelve-unit charging dock. An LED situated next to the power button flashes to indicate low battery status and charging status or is constant when fully charged. Typical usage battery life is 8 hours and full charge can be obtained in 2.5 hours.

Included accessories: Quick start guide and a replaceable Lithium-ion battery.

Dimensions (HxWxD): 96 x 50 x 17mm. Weight: 53.9g.

Also available as LR-4200-IR-P1 including 1x LA-430 loop lanyard and 1x LA-401 earphone set.

LR-5200-IR

With many of the same features of the LR-4200-IR, LR-5200-IR also allows the user multichannel listening. Whereas LR-4200-IR is locked to a single channel, LR-5200-IR is has a programmable multi-function listen button that can be tuned for the venues desired channels and electronically lock out any unused channels.

Included accessories: Quick start guide and a replaceable Lithium-ion battery.

Dimensions (HxWxD): 96 x 50 x 17mm. Weight: 53.9g.

Also available as LR-5200-IR-P1 including 1x LA-430 loop lanyard and 1x LA-401 earphone set.