Listen Technologies LT-800-150 manual LT-800 Block Diagram, Headphone

Page 9

LT-800 Block Diagram

 

 

 

POWER

 

 

 

 

On

Off

 

 

 

 

Red

 

 

3.5MM

 

 

LED

 

 

 

 

 

 

Stereo

 

In-Line

 

 

CHANNEL SELECT

 

 

 

 

115VAC6

Power Supply

 

 

 

 

LA-201

 

 

Up

 

0 Hz

 

 

HEADPHONE

(provided)

 

 

 

 

15VAC, 1A

 

 

 

 

 

 

 

 

Power Supply

 

 

 

 

 

Down

 

 

 

 

CPU Module

 

 

 

 

 

 

Volume

 

 

 

 

Listen LCD Display

 

 

 

 

 

Backlighted

 

 

Top Mounted

 

 

MIX Level

Compression Ratio

 

 

 

VU Meter

 

Antenna Stud

 

 

(internal adjustment)

 

 

 

 

Remote

 

 

 

 

 

 

 

 

Antenna

 

 

 

 

 

 

 

 

Connection

 

 

 

 

 

 

 

 

 

Transmitter RF Board

Pre-emphasis

SQ

 

 

Processing

 

BNC

 

 

 

Companding

 

 

 

 

 

 

 

 

 

 

 

ANTENNA

 

 

 

 

 

 

 

 

 

 

 

 

Green

 

 

Green

 

 

 

 

 

LED

 

MIX LEVEL

LED

 

 

 

 

 

 

 

 

 

Functions controlled by the CP

Low

High

 

On

Off

 

On

Off

 

Mid

 

 

 

 

 

 

Module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF POWER

 

SQ

 

CONTOUR

PROCESS

Input 1 VU

 

 

Input 2 VU

 

Meter

 

 

Meter

 

Input Level

Front Panel

12VDC

 

 

Input 1 Level Select

 

 

Mic

Line

Mic-Phantom Pwr, Mic, Line

 

 

 

 

 

Mic

 

Input 2 Level Select

 

 

Phantom Pwr

 

 

 

 

+10dBu/-10dBu

 

 

 

 

 

Test Tone Button

 

 

 

 

 

 

+10dBu

-10dBu

Front Panel

 

 

ON

 

 

 

OFF

 

 

 

 

Red

 

 

 

 

LED

 

Female XLR-1/4

 

 

 

 

Combo Connect

Phono

Phono

 

2/Tip 3/Ring

1/Sleeve

 

 

400Hz

 

 

 

INPUT 1

 

INPUT 2

MIX OUTPUT

TEST TONE

5

Image 9
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 ReferenceConnect Power LT-800 Setup InstructionsUnpack the Product Mount in Rack if necessarySet SQ Super Quiet and Process Features To Disable or Enable SQ and Process FeaturesSet RF Power Input Connect Audio InputsLT-800 Operating Instructions Power Unit OnSelect a Channel Lock on ChannelAdjust Mix Level Adjust Audio Input LevelAdjust Contour LT-800 Audio ControlListen SQ Super Quiet Improving Your Listening Experience Coaxial Cable RF Reception Maximization StrategiesChannel Selection If you are using multiple channels follow this processMHz Frequency Chart Troubleshooting LT-800 TroubleshootingThere is not sufficient range Warranty & Contacting Listen WarrantyContacting Listen Optional Accessories Antenna AccessoriesLT-800 Rack Mount Accessories Microphone Accessories Cable & Connectors AccessoriesPage Page

LT-800-150 specifications

Listen Technologies LT-800-150 is a robust and versatile transmitter designed primarily for assistive listening applications. It is a pivotal component of the Listen Technologies assistive listening systems, allowing users to experience clear audio in various environments, such as theaters, churches, conference rooms, and other public venues.

The LT-800-150 operates in the 72-76 MHz frequency range, which is specifically allocated for assistive listening devices, providing reliable audio transmission without interference. This wide frequency range ensures compatibility with a myriad of receivers, enabling a seamless experience for users with hearing impairments. The device offers a power output of 150 mW, ensuring a strong and clear signal that can cover a large area, making it ideal for spacious venues.

One of the standout features of the LT-800-150 is its exceptional audio quality. The transmitter is equipped with a balanced XLR microphone input, allowing users to connect a variety of audio sources, such as microphones or sound systems. This flexibility ensures that whether it's a live performance or a pre-recorded presentation, the audio remains crystal clear for the audience.

The LT-800-150 also supports multiple channels, allowing several transmitters to operate simultaneously without cross-interference. This characteristic is particularly valuable in environments where multiple events or services occur concurrently, enabling each to cater to the specific audio needs of their attendees.

User-friendly design is another hallmark of the LT-800-150. The device features a simple interface with LED indicators that provide users with real-time feedback on power, audio activity, and other essential functions. Additionally, it comes with a built-in audio compression feature, which helps to optimize sound quality and maintain consistent audio levels.

Built for durability, the LT-800-150 is constructed with high-quality materials, making it suitable for frequent use in various settings. Its compact design means it can be easily integrated into existing audio setups without taking up significant space.

In summary, the Listen Technologies LT-800-150 is a reliable and effective solution for assistive listening. With its powerful output, excellent sound quality, and user-friendly features, it stands out as an essential tool for ensuring accessible audio experiences for all individuals, particularly those with hearing challenges. Whether in a public space or at a private event, the LT-800-150 delivers superior performance that enhances communication and inclusivity.