General Installation; Front Panel Control - Prime QSM-624ET User Manual

Table of Contents

Advertisement

General Installation

DO NOT
run microphone cables near mains, data, telephone or 100V line cables.
DO NOT
run 100V line cable near data, telephone or other low voltage cables.
DO NOT
exceed 90% of the amplifiers output power when using 100V line (speech
only).
DO NOT
exceed 70% of the amplifiers output power when using 100V line (high
level background music).
DO NOT
use re-entrant horn loudspeakers for background music unless the loudspeaker has been
specifically designed for this purpose.
AVOID
jointing the microphone cable, when this is unavoidable make sure a good screened connector is
used.
ALWAYS
use a unbalanced or floating low impedance microphone terminating into a unbalanced input on
long microphone cable runs.
ALWAYS
use a mains grade double insulated cable for the loudspeaker cable runs.
ENSURE
that all loudspeakers are in-phase.
ENSURE
that there are no short circuits on the loudspeaker line before connecting to the amplifier.

Front Panel Control

1.
Power Switch – for normal use this control should be on.
weekends or holiday breaks.
2.
Channel Volume Controls Nos 1-5 – these level controls provide volume adjustment out over the speakers of the
various input services that may be connected to the Amplifier.
3.
Treble Control – adjusts higher frequency response of the amplifier.
4.
Bass Control – adjusts the lower frequency response of the amplifier.
5.
Chime – "Pre-announcement" chime to call attention that an announcement is about to be made. This function
may be set to operate automatically when connected to a suitable microphone via connections on the rear panel.
6.
Bell Switch – pressing this button will generate an electronic bell sound for as long as the button is depressed.
The feature may be activated by time clock or other means via the rear panel terminals.
the bell is to signify starts or ends of particular periods of time eg. lunch breaks, school classroom periods etc.
7.
Alert Switch – the alert switch generates an emergency alert electrical tone.
Its purpose is to call attention to a possible emergency and for those in the building or area to cease activities and
remain quietly for further instructions.
8.
Evacuation Switch (EVAC) – this switch will general an electronic emergency evacuation tone to Australian
Standard.
This tone is used to call attention for the immediate and orderly evacuation of the building to a
pre-determined evacuation plan.
9.
Green – Red L E D – this row of lights starting from left to right, green to red shows at what level the amplifier is
operating.
The normal operation levels for any source should be in the green areas, with the occasional peak into
red.
Continuous operation in the red will overdrive the amplifier and may cause damage and distortion of sound.
Version 2 - 9 January 2008
© Prime Audio - PO Box 353, Kerrimuir VIC 3129, Australia - Ph.03 9383 1399 – www.primeaudio.com.au
It is suggested that the power switch be turned off for
These may be microphone, cassette, CD etc.
These controls are usually set midway.
This tone is to Australian Standard.
Page 7 of 10
The primary function of

Advertisement

Table of Contents
loading

Table of Contents