Installation guide
VoiceLift System with PVS 405D Installation Guide • Introduction 1
Introduction
This section provides an overview of the VoiceLift System and gives instructions for
planning the installation and preparing the site in which the system will operate. It also
provides a listing of the available system kits and their contents. Topics include:
• About this Guide
• About the VoiceLift System
• Application Diagram
• Planning the Installation
• Inventory
About this Guide
This guide provides steps to install and connect each component of the Extron VoiceLift
System. The VoiceLift VLR 102 receiver can be installed in a drop ceiling, a standard
junction box, an octagonal ceiling box, or a wall. It is assumed that the installer has
some knowledge of and experience with audio/video, electrical, or electronic device
installation.
ATTENTION:
• Installation and service must be performed by authorized personnel only.
• UL listed electrical boxes are recommended.
About the VoiceLift System
The VoiceLift System is a low-power classroom microphone amplication system
that ensures that an instructor can be clearly heard at a comfortable level throughout
the entire room (also referred to as a “soundeld system”). The pendant or hand-held
microphone picks up speech from the instructor or student and transmits it to the
receiver via an IR signal. From the receiver, the signal is sent to an Extron PoleVault
switcher, which amplies and powers speakers to improve the signal-to-noise ratio to at
least +15 dB.
Two types of VoiceLift system are available:
• VLM System — Consists of one or two pendant microphones or one pendant and
one handheld microphone, the IR receiver, and an optional charging station (this kit
can be added to an existing PoleVault system).
• VLS System — Consists of the VLM System kit components, a PoleVault switcher,
and two speakers.
See Inventory beginning on page 9 for more information on kit contents.
Each VoiceLift system contains a feedback suppressor (FBS) that eliminates feedback
caused by high microphone levels, room resonance, or proximity of the microphone
to the speakers. If feedback occurs, up to 15 dynamic lters engage, automatically
detecting and attenuating unwanted feedback frequencies up to 30 dB.