AUDIO TELEX SA120 User manual

g
o
-
.f-,
C)
=
l-
.f-,
a
g
g
-
.l-l
$
l-
o
AUililDililr@ IHllr
COMMUNICATIONSPTYLTD
www.audiotelex.com
SA6O
&
SA12O
Mixer Amplifiers 3
Quditv
Endorse6
"TH;|H
Audio Telex Communications Pty Ltd
ACN 001345482 lncorporated in NSW
NSW & ACT QLD & NT vtc
149 Beaconsfield Street
Private Bag 149
Silverwater NSW 2128
Australia
Ph 02 9647141',
Fax [phone]
42 CommercialRoad
PO Box 871
Fortitude Valley QLD 4006
Ph 07 385213'12
Fax0l 32521237
221277 Middleborough Road
Box HillVlC 3128
PO Box 151
Blackburn South VIC 3130
Ph 03 98907477
Fax [phone]
WA SA TAS
299 Fitzgerald Street
West Perth WA 6005
PO Box 404
North Perth WA 6906
Ptr 08 92284222
Fax [phone]
Electronic Concepts Pty Ltd
76 George Stredt
Thebarton SA 5031
PO Box 7034 Hutt Street
Adelaide SA 5000
Ph 08 82349444
Fax 08 82UgM1
K W McCulloch Pty Ltd
54a Albert Road
MoonahTAS 7009
Ph 03 62286373
Fax [phone]
New Zealand
Unit B, 11 Piermark Drive
PO Box 512
Albany NZ 1331
Ph 09 4',,59426
Fax [phone]

SA60 Mixer Amplifier
SA1 20 Mixer Amplifier
Product Description
The 5460 is a 60 watt, 6 channel mixer amplifier and similarly the SAl20 is a 120 watl, 6 channel mixer amplifier. Both models
operate from240YAC@50H2(or 1l0VAC @60Hzwithfactorymodification)or24 VDCviaanextemalbatterysupplyandboth
can either be desk or rack mounted. Both are 2 standard rack units high and standard rack width of 482mm, for table mounting rubber
feet are supplied but these should be removed if rack mounting is intended. Both amplifiers will deliver their specified wattage into
loads of 4 or 8 ohms,70 or 100 volt line. both models feature six dual purpose inputs, XLR balanced mic input and dual RCA
aux/line level inputs. Channel 6 only has a higher level aux/line level input to enable it to accept a CD player or similar high level
inputs. The SA series feature output overload protection, a TRS insert point between the mixer and amplifier stages for easy insertion
of a graphic EQ, FBX Feedback Exterminator or similar, intemal heat sinking and a strong steel chassis.
Front Panel Gontrols
&
Fladlrfa sA 1 20 6ts6d666-
(SAl20 shown. The 5,4'60 has identical front panel controls)
I. Dual Microphone/Line Gain Controls: The 6 dual mic/line input controls are marked Ch I through Ch 6 and
should be adjusted to provide the required mix level for each individual channel. Start with the controls set to level 0 and tum the
controls slowly clockwise until the desired mix for each chamel is obtained.
BaSs Tonal ContfOl: Setting this control in the centre 'ozero" position will give an overall flat bass response to the output
of the amplifier. Adjusting the bass control in a clockwise direction will provide up to +12 dB of bass boost @ 100 Hz. Adjusting
the bass control in a counter-clockwise direction will provide up to -12 dB of bass cut @ 100 Hz.
Tfeble TOnal ContfOl: Setting this control in the centre o'zero" position will give an overall flat treble response to the
output of the amplifier. Adjusting the treble control in a clockwise direction will provide up to +9 dB of treble boost @ l0 kHz.
Adjusting the treble control in a counter-clockwise direction will provide up -9 dB of treble cut at 10 kHz.
MaStef OUtpUt GOntfOl: This control adjusts the overall output level of the amplifier depending on the levels set for the
individual input mix channels as detailed above. Start with the control level set to level 0 and slowly turn the control clockwise
until the desired output level of the amplifier is reached.
POWef SWitCh: This switch controls the switching of the AC power to the amplifier. Rocking this switch upwards fiims on
AC power to the amplifier while rocking the switch downwards tums power off to the amplifier. When in the upward "On"
position, the red neon in the body of the switch will glow.
LED Display VU Metef: Marked in decibel graduations from -21dB to +3 dB, the light emitting diodes will indicate the
volume level at the output of the amplifier. For normal operation the LED's glow green as they modulate with the output level of
the amplifier. If the lights are consistently indicating red the amplifier is being overdriven, resulting in distortion in the quality of
the audio signal.
2.

Rear Panel Connections oo
oo
oo
oo o o
y,C 3
?'--r
'c o)
't,,
\,,o
o
orrc 5 vrc .
Oz: O--
Ja
9-----.
ic oj
\c
'-'o
or
@c; c
n/
cot a a cot 70 r00 srt20-alsl60-f
I I I I I I ^cr^s/rl^c2^s,/B
Hlr.ELrffif] oc'|o^ s/srDc 5^ s/r
o
(SAl20 shown. The 54.60 does not have a 4 ohm outpuQ
t. 3 Pin IEC AC Mains Power lnlet The operating voltage is 240 VAC @50Hzor il0 VAC @60H2. The AC power
voltage is not extemally user adjustable but is factory preset. The inlet is equipped with an inbuilt AC fuse holder fitted with a 4
amp slow blow fuse plus one spare. Power consumption is 350 watts. I Please ensure that the mains power cord is
disconnected before attempting to check or replace this fuse.
Z. Direct Output ConnectiOlsl These screw terminals allow access to the direct outputs of the amplifier. 2 spare screw
terminals allow for the connection of various tone module accessories. Reading from left to right the terminals are-
r Low Impedance Common
o 4 Ohms (SAl20 only. Not on 5460)
o 8 Ohms
o Constant Voltage Common
r 70 Volt Line
o 100 Volt Line
. Spare
. Spare
Note: The minimum impedance level at any time on maximum load for 100 Volt line should be no less than 80 Ohms for the SAl20
and no less than 170 Ohms for the 5,4,60.
24 Volts DC Power Source Connectiolll Two post style terminals allow for the connection of an external 24VDC
battery for applications where PA system operation is imperative. The red terminal post is for connection to the positive (+)
terminal. The black terminal post is for connection to the negative O terminal. A trickle charge circuit provides a maximum
300mV automatically to a stand-by battery connected tothe24 VDC input on the SA120 only.
DC FUSe HOldef: Remove with a screwdriver if access is required. DC fuse rating is 10 Amps Slow Blow for the SA120
and 5 Amps Slow Blow for the 5,4.60.
lnSeft TRS jack socket insert point (6.5mm). Enables a graphic equaliser, FBX Feedback Exterminator or similar product to
be connected. Unbalanced insertion, breaks normal connection between the pre-amp and power amp stages of the amplifier. Tip :
Return. Ring = Send. Sleeve: Ground.
Tape OUtpUt 2 x RCA style phono output connector for line level output. Provides a maximum of 350mV into lOK Ohms,
ideal for a connection to most standard tape recorders. This output is sourced before the master gain control and as such, the tape
output level is not influenced by the operation ofthe master gain control.
Line OUtpUt Vtate XLR style, balanced transformer isolated output for connection to additional power amplifiers. Provides
a maximum of 700mV. Suitable for driving power amplifiers or similar devices. Pin connections are Pin I = Earth. Pin 2 =
Active Positive (+). Pin 3 : Active Negative O.
4.
5.
6.
7.

S. Ling lnputs: Note: AIt inputs are universal line / microphone inputs. Both connectors can not be utilised for any one
input. Six pairs of RCA style phono input connectors accept unbalanced line or auxiliary inputs for channels I through 6.
Channel 6 accepts higher level inputs such as a CD player.
e. MiCfOphOne lnpUtS: Note: All inputs are universal line / microphone inputs. Both connectors can not be utilised
for any one input. Six female XLR inputs accept 200 Ohm balanced or unbalanced microphone inputs. Pin connections are Pin I
: Earth. Pin2: Active Positive (+). Pin 3 : Active Negative (-).
Special Facilities
Phantom Power: Normally supplied to each of the six XLR microphone inputs. Provides 18 Volts DC. An intemal on/off
slide switch can be found on the internal circuit board PCB6I77 to disconnect phantom power from all six inputs. I ft is necessary
to disconnect the power cord and remove the tid from the amplifier before operating this switch.
Limiting: The SA series of amplifiers are equipped with a "soft knee limiter", which protects the amplifier from overload or short
circuits. In some cases it may be desirable to disconnect the limiter to obtain higher than rated power. This can be achieved by
removing a link on PCB6I79, however this is not recommended. Performing this procedure will void any warranty claim. I It is
necessary to disconnect the power cord and remove the lid from the amplifier before attempting this procedure.
Optional Accessories
g The installation of some of the following optional accessories involves access to the inside of the amptifier. Installation
should only be attempted by a qualified technician. Always turn off the AC power and remove the AC power cord before
attempting to access the inside of the amplifier. Please contact your nearest Audio Telex oflice for details of your nearest
qualified technician.
TOne GenefatOfS: Four separate tones are available as an option via the ATC5488 tone generator board. This internally
mounted PCB is easily fitted and plugs directly into a socket provided on the intemal circuit board PCB6I78. Please follow the
instructions supplied with the tone generator. When any tone from the ATC5488 PCB is activated all inputs will automatically mute
except for input one.
Tones available on the ATC5488 tone generator board are:
Evacuation Tone (to Australian Standard A52220.1.2)
Alert Tone (to Australian Standard A52220.1.2)
Bell Tone
Pre Announce Chime
Voice Operated Muting Modules: Two separate models are available for the SA series amplifiers. They are easily fitted
internally. Both plug directly into a socket provided on the intemal circuit board PCB6I78.
The models are:
TX3014 Muting Module with Priority- Provides two levels of muting with priority for channel one, which mutes all other inputs and
secondary priority for channel two, which mutes all other inputs except for channel one.
TX3010 Muting Module- Provides single muting from channel one only. When activated all other channels are muted.
Mains 240 VAC: 5 Amperes Slow Blow
DG: tO Amperes Slow Blow
Mains 240 VAC: 2 Amperes Slow Blow
DC: S Amperes Slow Blow
Fuse Sizes SA120 Amplifier
Fuse Sizes SA60 Amplifier