LightSpeed Technologies 780iR user manual

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Rear Panel Controls

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1.SPEAKERS (1-6) Volume Controls: These knobs control the output volume of each corresponding speaker. The volume level is preset in the middle position at the factory. LightSPEED recommends leaving the volumes at this level for uniform sound throughout the classroom.

2.SPEAKER OUTPUT (1-6): These 1/4” jacks are used to connect speaker cable from the loudspeakers to the LES 780iR.

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3.DC POWER: The LES 780iR uses

an AC to DC power converter to supply power to the amplifier.

4.FM OUT & AUX OUT: These output jacks send the processed signal to external equipment—for example, a tape recorder or an assistive listening device like LightSPEED’s LES 370 Personal FM System.

5.ADJ: These knobs control the output level of the audio source being sent out of the unit via the FM OUT & AUX OUT jacks.

6.MIC CHARGE: These jacks are

used to connect the charging cable to the LightMic or a handheld microphone for daily battery charging.

7.FILTERS: These speaker filters are cov- ered with a speaker indicator label and are factory preset for optimum perfor- mance. If you have any questions about these filters or their settings please call LightSPEED.

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8.AUDIO INPUTS (TV/VCR, CD/TAPE, COMPUTER, AUX): These RCA input jacks receive audio input from external audio sources (TV/VCR, CD/tape, computer, etc).

9.EQUALIZATION: The three frequency equalization adjustments are factory set for normal classroom environment.

•LOW: Controls low-frequency.

•MID: Controls mid-frequency.

•HIGH: Controls high-frequency.

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10.SENSOR INPUTS: The cable from the IR sensor connects to any of these six inputs. Up to six IR sensors can be connected to the LES 780iR for use in large or odd shape classrooms.

11.SENSOR SHORT: If there is a short in one of the sensor cables, this LED glows as a warning signal.

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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 Follow instructions and mount speakerss System InstallationSuspended Ceiling Mount Clip the LightMic to the lavaliere Consult the troubleshooting guide for further assistancePage Page Check that System OperationLT-70 LightMic Microphone/Transmitter This is not covered by the warranty Ensure the LES 780iR is switched on Or Channel B. This switch is set to Channel Select Switch This switchPower/Charge LED Indicator This Two-color LED indicator is locatedHM-70 Operating Instructions Rechargeable batteries are pre-installedInput from External Audio Equipment Five-Year Limited Warranty to Original Purchaser Tips on Using Classroom AmplificationAll your repair/replacement needs For properlyOverall System Specifications Amplifier SpecificationsReceiver Specifications InputsKeep the LES 780iR at least 6 feet away from computers Troubleshooting GuideRechargeable AA Battery Nickel Metal Hydride Individual Components and Optional AccessoriesPower 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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