Configurations
LS-83-01-GY 4-Channel 48-Listener Stationary IR System -Grey (North America)*
LS-83-02-GY 4-Channel 48-Listener Stationary IR System -Grey (Asia, UK)*
LS-83-03-GY 4-Channel 48-Listener Stationary IR System -Grey (Euro)*
LS-83-04-GY 4-Channel 48-Listener Stationary IR System -Grey (Australia)*
LS-83-01-WH 4-Channel 48-Listener Stationary IR System -White (North America)*
LS-83-02-WH 4-Channel 48-Listener Stationary IR System -White (Asia, UK)*
LS-83-03-WH 4-Channel 48-Listener Stationary IR System -White (Euro)*
LS-83-04-WH 4-Channel 48-Listener Stationary IR System -White (Australia)*
*01, 02, 03, and 04 designation refers to international plug type (type B, G, C, and I) for the power supply.
Architectural Specs
The LS-83 4-Channel 48 Listener Stationary IR System shall use infrared (IR) light to transmit audio from IR emitting radiators to portable IR receivers. The system shall use IR modulating frequencies above 2.0 MHz. The system transmitter shall have a timer that shuts off the carriers after 30 minutes when no audio is present at the transmitter. Channel selection shall be capable of being locked. The system shall be capable of transmitting on four (4) carriers and each of the four (4) carriers shall be capable of transmitting a mono or stereo signal. The system shall have a frequency response of 100 to 15 KHz (+/-3 dB), less than 2% distortion and shall have signal to ratio of greater than 60 dB. A single emitting radiator shall have a transmitting area of no less than 10,000 ft‘_ (929 m‘_) (one carrier) or greater for each radiator specified. The radiator shall be powered via CAT-5 cabling and the RF from the transmitter shall be carried by 50 ohm coaxial cable. The receivers will be powered by NiMH rechargeable battery packs and include a compact charging station. The LS-83 is specified.