LightSpeed Technologies 780iR user manual Input from External Audio Equipment

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Input from External

Audio Equipment

Below are instructions on how to connect an external audio device like a TV/VCR, CD/DVD, cassette player, or projector.

1.Connect an RCA cable from the audio source to one of the four (4) AUDIO INPUT jacks on the back of the LES 780iR using an RCA-type male connector. If the audio source produces a stereo signal, a stereo to mono adapter is required (Part # AC-STM-ADPT).

2.With the LES 780iR on, adjust the cor- responding volume knob on the front to a desired level.

Output to Personal

FM Transmitter

1.Using a cable with a 3.5 mm connector at one end, connect the FM OUT or AUX OUT to the input jack of an FM transmitter, recorder, or other device.

It is important to determine the size and type of audio input jack on the device as many manufacturers’ products differ.

The LightSPEED LES-370 requires the CA-MMC3535 cable.

2.With the LES 780iR turned on, adjust the FM OUT or AUX OUT volume on the back of the LES 780iR to a desired level.

Speaker Control

The LES 780iR has six individual speaker outputs, each with its own on/off switch and volume control. By “zoning” or sepa- rating the classroom into different areas where audio may or may not be de- sired, the teacher has greater flexibility controlling the dispersion of sound throughout the room. Zoning is especially useful in large or odd-shaped classrooms.

While LightSPEED recommends leaving the speaker volume set in the middle position to maintain a uniform sound, there may be times when separate volume adjustments are necessary.

Turning Speakers On and Off

1.Ensure that the LES 780iR is turned off and that A and B VOLUME

are turned down.

2.Turn the corresponding SPEAKERS (1-6)/OFF switch(es) on the front panel to the on (up) position.

3.Turn the LES 780iR on and slowly turn up the level of A VOLUME. Walk around the classroom speaking into the mic at a normal level and ensure that the desired volume is coming from each speaker. Do the same with B VOLUME if using a second LightMic.

Controlling the Volume of

the Individual Speakers

An area of the classroom may contain a noise emitter such as an HVAC system. In this case, it may be necessary to turn up the volume of the affected speaker to overcome the noise in that area.

When his situation arises, the LES 780iR allows the user to fine tune the output level:

1.Locate the speaker volume control knobs on back panel (SPEAKER 1-6) above the speaker outputs.

2.If possible, have a second person stand by the speaker(s) needing adjustment.

3.Speak into the mic at a normal level and adjust the corresponding speaker volume control(s) (SPEAKER 1-6) to a desired level.

Turning speaker volume too high can result in feedback when walking under speaker.

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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 Channel Select Switch This switch Or Channel B. This switch is set toPower/Charge LED Indicator This Two-color LED indicator is locatedRechargeable batteries are pre-installed HM-70 Operating InstructionsInput from External Audio Equipment Tips on Using Classroom Amplification Five-Year Limited Warranty to Original PurchaserAll your repair/replacement needs For properlyAmplifier Specifications Overall System SpecificationsReceiver Specifications InputsTroubleshooting Guide Keep the LES 780iR at least 6 feet away from computersIndividual Components and Optional Accessories Rechargeable AA Battery Nickel Metal HydridePower Supply/Battery Charger for 780iR 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.
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