LightSpeed Technologies 780iR Overall System Specifications, Receiver Specifications, Inputs

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Overall System Specifications:

Carrier Frequencies (IR)

2.06/2.54 MHz

 

Frequency Stability

+/‒ 3%

 

Maximum Deviation

+/‒ 50 kHz

 

Dynamic Range

> 80 dB

 

Signal-to-Noise Ratio

> 90 dB

 

Frequency Response

40 Hz - 20 kHz (‒ 3 dB)

 

Receiver Specifications:

 

 

Receiver Type

Superheterodyne

 

Receiver Sensitivity

6 µV for 60 dB S/N ( > 25 dBuV)

 

Image and Spurious Rejection

> 40 dB

 

Reception Selectivity

40 kHz

 

Squelching

Threshold 3.2 µV

 

Amplifier Specifications:

 

 

Power Output (System Total)

12 W per channel (72 W)

 

Total Harmonic Distortion

< 1% @ 20 W

 

Speaker Load Impedance

4 Ohms

 

Power Supply (UL Listed)

24 V/2.5 A

 

Dimensions

18 x 9 x 3 (H x W x D inches)

 

Weight

7 lbs.

 

Inputs:

 

 

TV/VCR

RCA ‒ Line Level

 

CD/Tape

RCA ‒ Line Level

 

Computer

RCA ‒ Line Level

 

Auxiliary

RCA ‒ Line Level

 

IR Sensors (6)

“F” Connector

 

Outputs:

 

 

Auxiliary Outputs (2)

3.5 mm

 

Speaker Outputs (6)

1/4”

 

Transmitter Specifications:

 

 

Audio Distortion

< 1%

 

Spurious Emissions

< 30 dB

 

Built-in Microphone

Uni-directional Electret

 

Battery Power (1-year warranty)

2 AA NiMH Rechargeable

 

Dimensions

1.4 x 1 x 4.6 (W x D x H inches)

 

Weight

3.04 oz (w/batteries)

 

External Sensor:

 

 

Power

By Receiver Unit

 

Reception Coverage

360 º, Ceiling-mount

 

Cable

40 ft., Plenum-rated Co-ax

 

Mounting

Ceiling clip/Wall bracket

[16]

Diodes

32

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Contents E R ’ S M a N U a L Front Panel Controls Rear Panel Controls System Operation LES 780iR Infrared Classroom Amplification System Page System Installation Follow instructions and mount speakerssSuspended Ceiling Mount Consult the troubleshooting guide for further assistance Clip the LightMic to the lavalierePage Page System Operation Check thatLT-70 LightMic Microphone/Transmitter This is not covered by the warranty Ensure the LES 780iR is switched on Power/Charge LED Indicator This Channel Select Switch This switchOr Channel B. This switch is set to Two-color LED indicator is locatedRechargeable batteries are pre-installed HM-70 Operating InstructionsInput from External Audio Equipment All your repair/replacement needs Tips on Using Classroom AmplificationFive-Year Limited Warranty to Original Purchaser For properlyReceiver Specifications Amplifier SpecificationsOverall System Specifications InputsTroubleshooting Guide Keep the LES 780iR at least 6 feet away from computersPower Supply/Battery Charger for 780iR Individual Components and Optional AccessoriesRechargeable AA Battery Nickel Metal Hydride Optional Noise-canceling Headset Microphone toWall-Mounting Shelf

780iR specifications

LightSpeed Technologies has engineered the 780iR, a standout product that combines cutting-edge innovation with functionality tailored for modern audio and communication needs. Designed with precision, the 780iR is ideal for educational spaces, corporate environments, and public venues where clear and effective communication is paramount.

One of the most notable features of the 780iR is its advanced infrared transmission technology. This technology ensures that audio signals are transmitted with minimal interference, providing crystal-clear sound quality. The infrared system is particularly beneficial in environments prone to electronic interference, as it operates in a spectrum that avoids typical RF congestion. This makes the 780iR an excellent choice for schools and organizations striving for reliable audio performance.

The 780iR also boasts exceptional adaptability with multiple channel options, allowing users to select the best frequency for their specific setting. This is especially useful in larger venues where multiple audio systems might operate simultaneously. Users can effortlessly switch channels to maintain optimal performance, avoiding potential overlaps and disruptions.

Another strong suit of the 780iR is its user-friendly interface. With straightforward controls, educators and presenters can easily adjust volume levels, select channels, and manage audio settings without needing extensive technical knowledge. This accessibility ensures a seamless experience, allowing users to focus on delivering their message rather than grappling with complicated technology.

In terms of design, the 780iR is both sleek and durable. Constructed with resilient materials, it is built to withstand the rigors of frequent use in various environments. Its compact design allows for easy placement in different locations, be it mounted on walls or positioned on desks.

Additionally, the 780iR is compatible with various audio sources, including microphones and other audio devices, enhancing its versatility. This compatibility enables seamless integration into existing audio-visual setups, making it a valuable addition to any technology ecosystem.

In summary, LightSpeed Technologies’ 780iR represents a fine blend of advanced technology and practical application, making it an excellent investment for those seeking superior audio performance in diverse settings. With its infrared transmission, user-friendly controls, adaptable channels, robust construction, and compatibility with multiple devices, the 780iR stands out as a leader in modern communication technology. Whether in classrooms, conference rooms, or public spaces, the 780iR delivers unparalleled clarity and reliability, ensuring that every voice is heard.