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Overview

Offer your clients, customers, visitors and more a complete assistive listening solution wherever it is needed with the LS-88-01 Portable ListenIR iDSP system. The setup meets all IBC and ADA requirments for small to medium-size rooms with a capacity of up to 50, and the entire system is easily transported and stored in its own carrying case. Each system includes a ListenIR Transmitter/Radiator Combo as well as recievers, ear speakers, and neck loop lanyards for multiple users, in addition to other required equipment.

From classrooms to conferences, boardrooms to jury deliberation spaces and more, the LS-88-01 gives you a complete package to begin offering on-demand assistive listening right away.

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-277 Conference Microphone
One (1) LA-338 Table Top Tripod
One (1) LA-346 Carrying Case
One (1) LA-423 4-Port USB Charger

Highlights

  • Pre-configured transmitter/radiator, receivers, microphone and more for immediate assistive listening wherever it is needed
  • Offers ideal coverage for small to medium venues with up to 50 seats
  • Easy to set up, tear down, and transport
  • Offers crystal-clear audio performance in classrooms, conferences, boardrooms and more
  • Multiple receivers, neck loop/lanyards, and ear speakers are included
Configurations & Architectural Specs

Configurations

LS-88-01 Portable ListenIR iDSP System (North America)

Architectural Specs

Furnish an iDSP portable IR assistive listening system for use by the hearing-impaired. The assistive listening system (ALS) shall be capable of broadcasting up to two (2) audio channels with the choice of four (4) mono carrier frequencies; 2.3, 2.8, 3.3 and 3.8 MHz.  The system coverage area shall be up to 30,000 ft² (2787 m²) with single channel transmission.  The system shall have a SNR of 60 dB or better and THD of less than 2%. The system shall have an audio frequency response of 63 Hz to 15 kHz, +/- 3db.  The system shall include an omnidirectional table top microphone for audio pickup in the room.  The system shall be transported or stored in a portable carrying case when the system is not in use.

The system receivers shall be capable of receiving on one (1) of four (4) wide band channels (carriers), (2.3 MHz), (2.8 MHz), (3.3 MHz) and (3.8 MHz).  The receivers shall be tuned to a single channel and users shall not be able to change the channel. The receivers shall have the option of being lanyard or belt clip worn and the lanyard shall incorporate an integrated neck loop for compatibility with T-coil hearing aids. The receivers shall be intelligent and provide customized audio to either earphones or the integrated neck loop based upon which is connected. The receivers shall have two (2) 3.5 mm (TRRS) connectors to drive the integrated neck loop lanyard or up to two (2) mono or stereo earphones. The receivers shall incorporate a multi-functional display (OLED) that indicates battery status, inventory number, volume level and a customizable channel name. The receivers shall employ a unique iDSPTM noise reduction technology. The receivers shall be fully programmable via PC software.  The receivers shall have a micro USB connector used for programming/setup, inventory control, charging and firmware upgrades. The receivers shall incorporate automatic battery charging circuitry and use a non-proprietary lithium ion battery. The receivers shall automatically turn on when removed from the charging device and automatically turn off when returned to the charging device.

The LS-88 is specified and 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-277 Conference Microphone
One (1) LA-338 Table Top Tripod
One (1) LA-346 Carrying Case
One (1) LA-423 4-Port USB Charger

Product Specifications
SpecificationLS-88

Physical

Shipping Weight4.6 kg (10.0 lbs.)
Weight3.7. kg (8.0 lbs.)
Accessories
FAQ
QWhat is the purpose of Squelch?
AThe 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.
QHow many channels (carriers) can the LT-84 produce?
ATwo (2) channels.
QHow many channels (carriers) can be produced simultaneously in a room?
AFour (4) channels. You will need two (2) LT-84 (2 carriers per LT-84).
QWhat is the coverage area provided by the LT-84?
A30,000 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
QDoes the number of channels (carriers) affect the coverage area?
AYes, 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.
QHow many Expansion Radiators (LA-141) can you use on a system?
AYes, 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.
QHow do I connect multiple Expansion Radiators (LA-141)?
AA 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!
QWhat is the warranty of the LT-84?
AThe LT-84 has a 3-year warranty. Listen Warranty
QWhat is the warranty on the Lithium-ion battery?
AThe Lithium-ion battery has a 1 year warranty. All other accessories have a 90-day warranty. Listen Warranty
QWhat type of battery technology does the LR-4200 use?
AThe LR-4200 uses a non-proprietary field replaceable Lithium Ion battery.
QHow long does it take to fully charge the LR-4200?
AIt varies dependent on the depletion of the battery. A fully depleted battery will charge in 2.5 hours or less.
QHow many LR-4200 receivers can I use in a system?
AAs many as you need, the number is endless.
QHow long will the LR-4200 run on a fully charged battery?
AThe LR-4200 will run continuously for 8 hours on a fully charged battery
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