Listen Technologies LT- 800-072 LT-800 Audio Control, Adjust Audio Input Level, Adjust Contour

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LT-800 Audio Control

1Adjust Audio Input Level

Adjust the input knob counterclockwise to add gain to Input 1. This will decrease gain to Input 2. Adjust input knob clockwise to add gain to Input 2. This will decrease gain to Input 1. If you have two audio sources connected to both Input 1 and 2, adjust the level of one input using the VU meter, then adjust the output level of the other audio source. Adjust the input level until the left VU meter(s) occasionally illuminate the red LEDs. Illumination of the red LEDs indicates the unit is in limiting. Limiting is required so that the unit does not over-modulate the transmitter. If you don’t want any audio limiting to occur, make sure the red LEDs never illuminate. If you want a highly limited signal, turn the audio gain up so the red LEDs illuminate often.

2Adjust Contour

Adjust the Contour knob counterclockwise if your audio source is mostly voice. Adjust the knob clockwise if your audio source is mostly music. The Contour knob adjusts the relative equalization of the unit. This equalization boosts or cuts frequencies above 5 kHz.

3Adjust Mix Level

Adjust the mix level until the right VU meter occasionally illuminates the red LED. This is the level adjustment for the combined output from Input 1 and Input 2.

If you are using another manufacturers’ receivers with the LT-800, determine the frequency of their receivers then refer to Listen’s Frequency Compatibility Tables (pages 15-16) to find the LT-800 channel that corresponds with the receiver’s frequency. We recommend verifying corresponding channel designations on these tables to ensure compatibility and provide the best possible reception.

The LT-800 is Phonak compatible and can be set to display Phonak specific channels. See page 8 to set Channel Mode and page 14 for specific channel designations.

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Operating ContentsInstructions

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Contents Page Page Page Page LT-800 Table of Contents Page LT-800 Package Contents Architectural Specifications LT-800 SpecificationsHeadphone LT-800 Block DiagramLT-800 Front Panel Controls & Displays LT-800 Quick ReferenceLT-800 Setup Instructions Set SQ Super Quiet and Process Features To Select Phonak ModeSelect Channel Mode if necessary To Select Expanded ModeSet RF Power Connect Audio InputsInput Lock on Channel Power Unit OnLT-800 Operating Instructions Select a ChannelLT-800 Audio Control Adjust Audio Input LevelAdjust Contour Adjust Mix LevelListen SQ Super Quiet Improving Your Listening Experience Coaxial Cable RF Reception Maximization StrategiesChannel Selection If you are using multiple channels follow this processMHz Compatibility Chart CompatibilityPackage ContentsCharts Frequency MHz Listen Phonak Phonak Frequency ChartTroubleshooting LT-800 TroubleshootingThere is not sufficient range Compliance Notice & FCC Statement Compliance NoticeFCC Statement Warranty & Contacting Listen WarrantyContacting Listen Optional Accessories Antenna AccessoriesLT-800 Rack Mount Accessories Microphone Accessories Cable & Connectors AccessoriesPage Page
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LT- 800-072, LT-800-216 specifications

Listen Technologies has established itself as a leading provider of assistive listening systems, and its LT-800-072 and LT-800-216 transmitters are exemplars of their commitment to quality and innovation. These devices are designed to enhance the audio experience in environments where clear sound transmission is crucial, such as theaters, lecture halls, museums, and places of worship.

The LT-800-072 is a powerful, reliable FM transmitter that operates on the 72-76 MHz frequency band. It supports both mono and stereo transmission, making it versatile for various applications. One of its standout features is its robust selectable power output, which allows users to adjust the strength of the transmission based on the specific requirements of the environment, ensuring optimal coverage without interference. This flexibility is particularly beneficial in larger spaces, where sound needs to travel further without losing clarity.

On the other hand, the LT-800-216 is designed for use within the 216 MHz frequency range, offering another layer of versatility for varying listening preferences and regulatory requirements. It boasts a compact design, making it easy to integrate into existing audio systems or set up independently. The device also features a built-in audio input that accommodates multiple audio sources, including microphones, mixers, and other devices, allowing for seamless integration and functionality.

Both transmitters utilize advanced technology to deliver exceptional audio quality. The modulation techniques employed in these devices help eliminate static and background noise, ensuring that users receive crystal clear sound. The inclusion of multiple channels allows simultaneous transmission, which is a significant advantage in settings where multiple languages or presentation options are necessary.

Durability and ease of use are also critical characteristics of the LT-800-072 and LT-800-216. They are constructed with high-quality materials that withstand the rigors of regular use, making them ideal for both permanent installations and portable applications. Additionally, user-friendly controls and clear indicators simplify operation, enabling operators to focus on delivering an excellent auditory experience rather than troubleshooting technical issues.

In summary, the Listen Technologies LT-800-072 and LT-800-216 transmitters provide advanced sound transmission solutions characterized by flexibility, excellent sound quality, and robust build quality. Their capabilities make them suitable for various applications, effectively addressing the diverse needs of listeners in a range of environments.
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