ListenIR iDSP Level II System

Item:LS-91

The LS-91 ListenIR iDSP Level II System from Listen Technologies comes complete with everything you need to begin transmitting audio and meeting assistive listening requirements.

Ideal for small or medium-sized venues with a capacity of up to 50 seats, the LS-91 offers a convenient way to add secure assistive listening capabilities to boardrooms, courtrooms, theaters, educational spaces, and more. Each system includes one LT-84 Transmitter/Radiator combo, along with several LR-4200-IR iDSP receivers and a 12-unit charging tray. Packaged together, the LS-91 gives any business or venue a convenient way to achieve compliance with assistive listening regulations while giving your clients the highest level of audio performance.

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Includes

One (1) LT-84-01 ListenIR Transmitter/Radiator Combo
Two (2) LR-4200-IR Intelligent DSP IR Receiver
Two (2) LA-430 Intelligent Ear Phone/Neck Loop Lanyard
Two (2) LA-401 Universal Ear Speaker
One (1) LA-422 USB to Micro USB Cable
One (1) LA-381-01 Intelligent 12-Unit Charging Tray

Highlights

  • Pre-configured infrared system comes with everything you need to begin offering secure, high-quality assistive listening in your venue
  • Provides outstanding coverage up to 2,787 m2 (30,000 ft2)
  • Ideal for small or medium-sized venues up to 50 seats
  • Includes transmitter/radiator combo, several iDSP receivers, and a 12-unit charging tray
  • Crystal clear audio performance for all listeners
  • Integrated neck loops/lanyards provide compatibility with T-coil-equipped devices
  • Designed for single-channel applications

Also Needed

Specs

Accessories

FAQs

+What is the purpose of Squelch?

The purpose of squelch is to mute the audio output of your receiver when the signal from the transmitter is turned off or is too weak to be received. Without squelch you would hear radio noise in your earphone. The squelch function can be programmed to the desired setting.

+How many channels (carriers) can the LT-84 produce?

Two (2) channels.

+How many channels (carriers) can be produced simultaneously in a room?

Four (4) channels. You will need two (2) LT-84 (2 carriers per LT-84).

+What is the coverage area provided by the LT-84?

30,000 ft² (2787 m²) single channel with LR-4200-IR/LR-5200-IR receivers or 7,500 ft² (697 m²) single channel with LR-42/LR-44 receivers

+Does the number of channels (carriers) affect the coverage area?

Yes, for one (1) channel (carrier), the line-of-sight coverage area is 30,000 ft² (2787 m²) and for two (2) channels (carriers), the line-of-sight coverage area is 15,000 ft² (1394 m²) with LR-4200-IR/LR-5200-IR receivers.

+How many Expansion Radiators (LA-141) can you use on a system?

Yes, for one (1) channel (carrier), the line-of-sight coverage area is 30,000 ft² (2787 m²) and for two (2) channels (carriers), the line-of-sight coverage area is 15,000 ft² (1394 m²) with LR-4200-IR/LR-5200-IR receivers.

+How do I connect multiple Expansion Radiators (LA-141)?

A maximum of two (2) LA-141s can be connected to each Expansion Link output RJ-45 on the LT-84 with a maximum daisy chained CAT-5e cable length of 100 ft. (30.5 m). CAT-5e cable must be at least 24 AWG!

+What is the warranty of the LT-84?

The LT-84 has a 3-year warranty. Listen Warranty

+What is the warranty on the Lithium-ion battery?

The Lithium-ion battery has a 1 year warranty. All other accessories have a 90-day warranty. Listen Warranty

+What type of battery technology does the LR-4200 use?

The LR-4200 uses a non-proprietary field replaceable Lithium Ion battery.

+How long does it take to fully charge the LR-4200?

It varies dependent on the depletion of the battery. A fully depleted battery will charge in 2.5 hours or less.

+How many LR-4200 receivers can I use in a system?

As many as you need, the number is endless.

+How long will the LR-4200 run on a fully charged battery?

The LR-4200 will run continuously for 8 hours on a fully charged battery