The SA 120 is o high quolity system
omplifier, powered by 240 /l10
Voc moins or 24VDC stond-by
power. Sturdily conslrucled wiih
oluminium extruded, slondord
rock mouniing froni ponel,
generous heoi sinking ond o
conservotively roled 300VA
toroidol power lronsf ormer,
ensure the omplifier comfortobly
meets specificolions.
INPUTS: SAl20 Hos six universol
chonnels with seporole chonnel
goin con'frols oncl omple
heodroom. Eoch chonnel will
occept bolonced or
ore muied. A single chonnel
muting module TX3010 is olso
ovoiloble. This unit plugs inio
ihe some sockel in the
omplifier cnd will provide
muting of chonnels 3 to 6 when
ocJivoled from chonnel one.
INSERTION POINT: A TRS
{6.5mm) jcck insert poinl
belween the pre-omp ond
power-omp sioge is occessoble
ol the reor. l1 is ideol for o
Grophic EQ, FBX Feedbock
Exlerminoioror or ony oiher
type of processor.
PROTECTION: Sofl knee,
internol current limiting,
provides protection from
overlood ond overdrive
conditions.
DC OPERATION; A trickle
chorge circuii provides o
moximum 300mV outomoticolly
to o stond-by botiery
connected to lhe 24Voll DC
inpu1.
TONEGENERATOR:A4lone
module TX5488 is on opiionol
occessory. The unit plugs-in to c
receplocle inside the omplifier.
A choice of ony one of four
tones moy be selected. They
ore: Eleclric bell, Pre-
onnounce chime, Aleri ione
|AS222O.1) and Evocuoie tone
(AS2220.1). Any of the tones
moy be oclivoted from o
remote point by meons of
exiernol connections of the
reor porel of the omplif'er. Thei.
octivofion outomoticolly mutes
inpuls 2 to 6 of the omplifier.
ARCHITtrCTURA.L AND
f,NGINEERING
SPECIFICATIONS
rhe m;xer omplifier sholl hove six
univenol inpuis eoch comprising
bolonced microphone, with o
sensitivity of 600 micro-volts ond
XLR femole sockeis. Auxiliory inputs
must hcve o sensitivily of 40 mV
for inpuls one to five ond 200mV for
lnpul 6 to occommodote o CD
or other lrigh level input. Eoch
Aux input will hove RCA Phono
sockeis.
The moster seclion shcll include
one mcsler volume contro , two EQ
controis, one with l2dB of boosl
ond cut ot l00Hz ond the other
with 9dB of boost ond cut ot lOkHz.
A power on / off switch with red
"on " neon ond on LED disploy Vu
groduoted from +21 io 3dB sholl
form port of this section.
The omplifier chossis sholl be solidly
consirucled, suitoble for rock
mounting in o stondord 482mm
widih rock wiihout lhe need for
unbolonced, microphone, line
ond ouxiliory inputs. The unil hos
industry stondord XLR
microphone sockels ond RCA
Phono ouxiliory sockets for eoch
chonnel.
OUTPUTS: Speoker ouiputs for
the SAI20s ore 100 & 7O Volls. 4 &
B ohm isololed ironsforner line
outputs. A seporoie bolance
mole XLR socket provides c mox
700mV bolcnced tronsf ormer
isoloied oulpul for connection io
oddilionol power ompliflers. A
seporote tope recorder oulpul
is supplied by meons of on RCA
Phono socket.
MUTING: SA120 ls equipped wilh
o multi-pin receplocle on the
circuit boord, which
occommodoies on oplionol
TX30I 4 two chonnei rnuting
module. When chonnel I
octivotes by voice or progrom
input (VOX). oll remoining inpuls
2 lo 6 ore muted. When chonnel
2 octivoies by VOX. inputs 3 io 6
odditionol
cccessories. rocl. mounting
Speoker outpuis will be
t'onsformer isoloted ond conprise.
100 & Z0 volts. 4 ond 8 ohms. The
ompliiier must be copoble of
delivering 120 wotis RMS ot I00
volts into on 80 ohms inductive
lood from moins ond 24VDC. wiih
Jess thon 0.5% disloriion ot I kHz
ond with systern hum ond noise of
less thon -Z2dB.
The omplifier sholl be Audio Telex,
Ausirolion mode, model SAl20.
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REAR VIEW OF SA12O AMPLIFIIR