DESCRIPTION
l20 wotl
RMS output
mixer omplifier
with built-in
Radio
Receiver,
Auto
Reverse
Cossette Deck,
Monilor
Speoker
ond Four
Tone Generotor.
Self
contoined
solid steel
conslruciion, suitoble
for toble or desk
mounting
or rock
mount-oble, by
meons
of on oplionol
rock mounling
kit.
IITPUTS AT120RC
hos four universol
channels wiih
seporote
goin
controls
ond ample
heodroom,
Eoch chonnel
will occepl
bolonced or
unbolonced
microphone,
line ond ouxiliory inputs.
The unit
hos industry
stondord XLR
microphone sockeis
ond RCA Phono
ouxiliory sockeis
for eoch chonnel.
OUTPUTS Speoker
oulputs for
the
ATl20 ore 100 & 70 Volis.4
& B ohm
isoloted
lronsformer
outputs,
plus
o
tope recorder
oulput
by meons of on
RCA Phono socket-
RADIO R.ECEIVER A
high
quolity
rodio
receiYer wilh
push
builon digitol
tuner is on inlegrol
port
of the
omplifier.
wilh conlrols
locoted on
the fronl
ponel.
The
receiver is eosy
to
operote ond hos l8
stoiion memory
copocity. An
LCD
ponel
indicotes
luning frequency
ond
o seporole
level
control enobles
strong signol
levels
to be moinloined
even in low
slrength
oreos.
CASSETTE
PLAYER A relioble robust
outo reverse coniinuous
ploy
cossetle
ployer
is olso on inlegrol
port
of lhe
omplifier. Conlrols
ore locoted on lhe
front
ponel,
logether
wiih the looding
mechcnism for the
cosselle. The
deck
is
eosy to operole, il feotures
o
push
bulton
pouse
conlrol,
push
bulton direclion control
ond LED
indicotors, on ejecl
butlon ond level
control.
SPEAKER
SELECTOR A sir
position
push
bulton speoker selector
wilh
overriding "qll coll" is locoted
on the
front
ponel.
Eoch
of the six speoker
selectors
switches the 100 Voli
speoker
line oulpui lo 6 seporote
zones.
The
"oll
coll" seleclor
overrides
oll 6 zones regordless
of their on/ o{{
condition
ond
ploces
lhe
100 Volt
outpui to oll 6 zones.
TONE GENERATOR A lou|lone
module ATC54B8 is inslolled.The
unit
plugs
in to o /
pin
receptocle
inside
the omplifier and
provides
Bell. Pre-
onnounce
Chime, Alert tone
IAS222O.1)
ond Evocuole
Tone
(AS2220.1).
Any of these tones moy
be
octivated from o remole
poinl
by
meons of externol connections
ol the
reor
ponel
of lhe omplifier.
Activotion
of ony
tone outomolicolly mu
les
inpuls 3
& 4
ond
progrom
from the
in-buill rodio receiver
ond cossette
ployer.
MUTING An optionol single
chonnel
muting
module TX30l0 con be fitled
to the omplifier inlernolly,
by meons
of o multi
pin
sockel
provided
on ihe
circuil
boord. TX30l0 will
provide
voice or
progrom
operated muiing
of
chonnels
3 ond 4 when
ociivcted
from chonnels
I or 2. Automolic
muling
oJ in-buill rodio or cossette
progrqms
will occur when
eilher input
I or 2
is ociuoled:
PROTECTION Internol
currenl limiling
prolecis
the ompliJier
from overlood
ond
overdrive condilions,
SAFETY: By meon
of o 3
pin
IEC
connecior
with buill in fuse
for
moximum sofely
ond convenience.
RACK MOUNTING
ATRMK Rock mount
kil
ARCHITNCTURAL
ENGINEERING
SPECIFICATIONS
The mixer omplifier
sholl hove
four
universol inpuls
eoch comprising
o
bolonced microphone
wilh
XLR
femole
sockets ond
ouxiliory inpul
wilh o sensitivity ot /5mV
using Phon(
RCA
sockets.
The unii sholl incorporaie
o digitol
FM
/
AM receiver with
lB
presel
chonnels
copocily,
o level conlrol
ond LCD
frequency
disploy. lt sholl
olso
incorporoie on oulo
reverse cosselte
ployer
copoble of
occepling
stondord
compoci cassettes.
The
ployer
will olso
feoture two LEDS
indicoting the direction
ond side of
the tope
in use. Fosi forword, rewind
buttons ond o
pause
conirol
ore
essenliol functions
of the cassetle
ployer.
Bolh
progrom
sources
will
hove
seporote inputs into
the
omplifier which
ore octivated when
the level conlrol
for eoch unit is
oclivoled.
A
monitor speoker with
its' own
omplifier
ond
volume
conlrol shall
be
inslolled inlernolly.
The speokers'
function
will
be monitoring
of the oll
progrom
inputs, ils'
level will not be
offecled
by the omplifiers'mosler
goin
control.
The omplifier moster
section
sholl
include
one mosier
goin
control, two
EQ controls, one with
l2dB of cui
on(
boosl ot l00Hz
ond the other
with 9dB-
of cut ond boost ot
lokHz.
Speoker outpuls
will be
oyoiloble
from o trons{ormer
isololed
oulput ot
100
&
70 Voll.
4 & 8
ohms. The
omplifier must
be copoble
of
delivering 120 woils
RMS inlo
on 80
induclive ohm
lood. with less
thon
0.5%
distortion meosured
oi I Khz ond
with system
hum ond noise less
thon
/2d8.
The
omplifier shall be on
Audio Telex
model ATI20RC,
monufoclured
in
Austrolio.
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VIEW OF AT'2ORC MD(ER AMPLIFIER