Atlas Sound AA120, AA240 User manual
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
Signal Power
Peak
n
Input 1
Bass
n
Input 2
Treble
Input 3
Input 4
Input 5
Input 6
Power
Master
On
Off
AA120/AA240 Atlas Sound Mixer Amplifi er
Specifications are subject to change without notice
AtlasSound.com
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
TABLE OF CONTENTS
Safety Instructions………………………………………………………………………………………………….2
Introduction, Features, and Applications......................................................................……………………..3
Safety Precautions......................................................................……………………...………………………4
Front Panel Description…………………………………………………………………………………………....6
Rear Panel Description…………………………………………………………………………………………….7
Quick Start Examples……………………………………………………………………………………………..13
Wiring the AA120/AA240………………………………………………………………………………………….16
Rack Mount Kit.………….………………………………………………………………………………………...18
Block Diagram……………………………………………………………………………………………………..19
Optional Input Transformer Installation………………………………………………………………………….20
Specifi cations………………………………………………………………………………………………………21
Warranty................................................................................................……………………………………..24
SAFETY INSTRUCTIONS
Please be sure to read all the instructions carefully before using this product.
• Many safety messages are included in this manual, please be sure to observe these as they are
important.
• We recommend that you keep this manual close by for future reference.
• Do not install this device in dusty or humid locations, or in direct exposure to sunlight. In addition,
locations that have steam or sooty conditions are not to be used, as this may result in fire or electric
shock.
• Prevent the power cord from damage, pinching or being walked on, in particular, the plug and
where the cord attaches to the amplifier.
• Do not defeat the polarized or grounding feature of the power cord plug. If the plug will not fit in your
outlet, consult a licensed electrician.
• Use only the accessories and attachments specified in this manual.
• Disconnect the power cord during electrical storms, or when the product will be unused for long
periods.
• Have servicing done only by qualified personnel. Servicing will be required when the product is
damaged in any way, when the power cord is damaged, when liquid has been spilled or objects have
fallen into the device. Servicing will also be required when this device has been exposed to rain, does
not operate normally, or has been dropped.
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
2
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
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INTRODUCTION
Congratulations and thank you for purchasing the Atlas Sound Model AA120/AA240 professional
grade mixer/amplifi er. An integral part of the AA Series of commercial products, the AA120/AA240 was
engineered and integrated with unique features to assist the contractor/installer in today’s commercial
business audio environment.
FEATURES
• Zone 1 output 120W (AA120), 240W (AA240)
• Zone 2 output 1W@ 8Ω or 1.5V@ 600Ω
• Inputs 1-5 mic/line switchable
• Input 6 line level only
• Input 1 has VOX send
• Inputs 2-6 have switch selectable mute receive
• 2 Tape and 2 Line outputs
• Remote VCA selectable INPUT 6 or MASTER
• Switch selectable bridge in/out bus allows amplifi er combining
• Pre amp out-Power amp in loop
APPLICATIONS
The AA120/AA240 will be right at home in large retail, commercial, and industrial paging and background
music applications. Hotels and conference centers will appreciate the room combining and remote volume
control features that this product provides.
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
3
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
SAFETY PRECAUTIONS
• Read the instructions very carefully before using this product.
• Observe the instructions in this manual as conventions of safety; symbols and messages regarded as
important precautions are included.
• Retain this manual for future reference.
Message Conventions and Safety Symbols
Before installing and operating this product, read this manual so you are fully aware of the potential
safety hazards and understand the safety symbols and messages. The safety symbols and messages
shown below are used in this manual to prevent bodily injury and property damage from mishandling.
WARNING
CAUTION
WARNING
• Do not expose the product to rain or in an environment where it may be exposed to water or other
liquids, which may result in fi re or electric shock.
• Operate the product only with the voltage specifi ed on the unit. Fire and/or electric shock may result if
a higher voltage is used.
• Do not modify, kink, or cut the power cord. Do not place the power cord on close proximity to heaters
and do not place heavy objects on the power cord, including the product itself, doing so may result in
fi re or electric shock.
• Replace the protective cover over the speaker terminals after installation. Do not touch the 70V
speaker terminals as electric shock may result.
• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to
a gas pipe as a catastrophic disaster may result.
• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and
cause injury or property damage.
Indicates a potentially hazardous situation which, if mishandled, could result
in death or serious injury.
Indicates a potentially hazardous situation which, if mishandled, could result
in moderate or minor personal injury, and/or property damage.
WHEN INSTALLING THE PRODUCT
WARNING
• To prevent electric shock, do not remove the product cover as there are high voltage components
inside. Refer all servicing to Atlas Sound.
• Should any of the following irregularities occur during use, immediately switch off the power,
disconnect the power cord from the AC outlet contact Atlas Sound. Do not to attempt to continue
operation with the product as this may cause fi re or electric shock.
• Smoke or strange smell coming from the unit.
• If the product falls or the case is damaged.
Specifications are subject to change without notice
WHEN THE DEVICE IS IN USE
AtlasSound.com
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
4
AA120/AA240 MIXER AMPLIFIER
• If water or any metallic objects falls, into the product.
• If the power supply cord is damaged in any way.
• If the unit is malfunctioning.
• Do not insert or drop metallic objects or fl ammable materials into the ventilation holes of the product's
cover, as this may result in electric shock or fi re.
• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills
into the unit, fi re or electric shock may result.
• Never operate this product or touch the power supply cord during an electrical storm, electric shock
may result.
• Never exceed the wattage on the product when connecting equipment. Fire and or property damage
may result.
OWNER'S MANUAL
CAUTION
• Plugging in or unplugging the power cord with wet hands may result in electric shock.
• Never move the unit with the power cord plugged into the wall, as damage to the power cord may
result. When unplugging the cord from the wall, grasp the plug, NOT the cord.
• Never block the panel vents in the product's cover. Heat buildup may result inside the unit and fi re may
result.
• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in
areas where sooty smoke or steam in present. Fire and electric shock may result.
CAUTION
• When powering the product up for the fi rst time, ensure that the volume controls are turned down.
Unexpected high sound pressure levels may be present at the speakers and result in hearing loss.
• Never place heavy objects on the product, causing it to fall and or break, resulting in personal injury
and property damage. In addition, the product itself may fall and cause injury and property damage.
• Never operate the product for extended periods with the sound in a distorted condition. This is an
indication of a malfunction, which may result in excessive heat being generated and causing a fi re.
• Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of dust
inside the unit may result in heat buildup and fi re.
• Ensure that the power supply plug in securely plugged into the wall outlet. Never allow dust to
accumulate on the power plug or inside the wall outlet.
• When cleaning the unit or the unit is not to be operated for an extended time period, unplug the power
cord from the wall.
WHEN INSTALLING THE PRODUCT
WHEN THE PRODUCT IS IN USE
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
5
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
FRONT PANEL DESCRIPTION
Input 3
n
Input 1
Bass
7
n
Input 2
Treble
8
Input 4
Input 5
6
Input 6
5
Master
3
4
Signal Power
Peak
Power
On
Off
2
1
1. Power Switch
This push on/push off switch applies power to the AA120/AA240.
2. Power LED
This LED will illuminate when the AA120/AA240 is turned on.
3. Peak LED
The PEAK LED will illuminate when the AA120/AA240 is in a clipping condition, caused by excessively
high input levels or a GAIN control is turned up too high. An occasional flash is OK.
4. Signal LED
This LED will assist you in setting gain structure into the amp. With a source connected to the amp and
playing, turn up the channel gain control until this LED just starts to fl ash. Once all the sources
connected are playing, the SIGNAL LED may be on solid. This condition is normal.
5. Master Gain Control
The MASTER GAIN CONTROL will raise or lower all the input channels together. A good starting point
for setting gain structure is to set MASTER GAIN CONTROL at the 12:00 position, and then adjust
the individual channels one at a time.
6. Input 1-6 Controls
The gain for input channels 1-6 are controlled by these rotary controls. The MASTER GAIN CONTROL
must be turned up in addition to the input controls for audio to be present at the speaker
terminals.
7. Bass Control
The BASS CONTROL is a shelving type control which will boost or cut bass frequencies at 100Hz at
the rate of ±10dB.
8. Treble Control
The TREBLE CONTROL is a shelving type control which will boost or cut treble frequencies at 10kHz
at the rate of ±10dB.
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
6
AA120/AA240 MIXER AMPLIFIER
REAR PANEL DESCRIPTION
OWNER'S MANUAL
9
10
Unswitched Outlet
120V AC 60Hz
Max 500W
120V AC 60Hz 300W
Outlet Breaker
125V AC 4A
Push Reset
Speaker Output 120W
¡
CLASS 2 WIRING
Bridge
In/Out
G
100V70V25V8Com
Zone 2 Out
Remote
VCA
¡
++
Tape Out
A
B
£Ид£К>VКV>ЮКЫ`°]КГ]К/8КЗx££К
nдд®КnЗИООООКМ>Г-Х`°V
Mute
Line Out
Input 6
Zone 2
Input 1
Input 4
Input 5
Level
R
L
Input 3
Trim
Trim
Trim
1
Input 6
Sens
100mV
300mV
Input 5
Input 4 Input 3 Input 2 Input 1
G
G
+
Input 1
Input 2
Trim
5
23
4
Input 4Input 5 Phantom
Input 2Input 3
Line
Line
Line
Line
Mic
Mic
Mic
Mic
G
+
Sens
Trim
6
51
4
6
7
Input 1
Off
Tel/Line
On
Mic
+
23
8
VCA
Low Cut
Master
Off
Input 6
On
G
+
Input 3
Input 6
Input 4
Input 2
Input 5
Mute Rcv
Off
OffOnOff
Off
Off
On
On
On
On
G
+
1W 8¡600
Sel
+
Pre Out
Pwr In
9. Dipswitch "A" Positions 1-6
Understanding the functionality of the dipswitches is key to getting the most out of the AA120/AA240.
Whether the switch is in the "Up" or "Down" position is critical to the function of the amplifi er. Note:
Mispositioning any of these switches may cause harm to the speakers or amplifi er. We recommended
all levels be turned down prior to making any switch selections. Pay close attention to the two
assignment charts and manual for proper settings.
6
51
Low Cut
On
23
Input 6
Input 5
OffOff
On
Mute Rcv
Off
On
4
Input 4
Off
On
Input 3
Off
On
Input 2
Off
On
Dipswitch 1- LOW CUT – When in the "ON" position, frequencies below 400Hz are attenuated
at the rate of 6dB per octave. Note: The rotary bass control is bypassed when the LOW CUT fi lter
is on. We suggest that when paging horns are connected to the AA120/AA240, engage the LOW
CUT fi lter to prevent the horns from operating below their cut off frequency. When "OFF", the
amplifi er operates full bandwidth.
Dipswitch 2-6 - MUTE RCV (RECEIVE) – When "ON", Input's 2-6 signals will be muted
upon a signal present on Input 1 (Refer to Number 11 Input 1 Sens), or a contact closure on the
remote mute terminals (Refer to Number 15 Remote Mute).
10. Dipswitch "B" Positions 1-8
Line
Mic
6
5
Input 1
Tel/Line
Mic
7
8
VCA
Master
Off
On
Input 6
1
Input 6
Sens
100mV
300mV
23
Input 4Input 5 Phantom
Line
Mic
Line
Mic
4
Input 2Input 3
Line
Mic
Dipswitch 1 – When set to the "100mV" position, the sensitivity of Input 6 is suitable for
inputting Telephone Paging Signals. When set to the "300mV" position, the sensitivity of Input 6 is
suitable for CD/DVD player outputs.
Dipswitch 2-5 - When set to the "Line" position, input sensitivity is suitable for CD/DVD line
level outputs. When set to the “Mic" position, sensitivity is suitable for microphone inputs.
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
7
AA120/AA240 MIXER AMPLIFIER
OWNER'S MANUAL
1
Input 6
23
Input 4Input 5 Phantom
4
Input 2Input 3
6
5
Input 1
7
8
VCA
Sens
100mV
300mV
Line
Mic
Line
Mic
Line
Mic
Line
Mic
Tel/Line
Mic
Master
Off
On
Input 6
Dipswitch 6 - When set the "Tel/Line" position, Input 1 sensitivity is suitable for telephone
paging and line level signals. When set to the "Mic" position, the sensitivity is set for microphone
signals.
Dipswitch 7 - When set to the "OFF" position, PHANTOM POWER is turned off on INPUTS
1-5. When set to the "ON" position, PHANTOM POWER (24VDC) is available on INPUTS 1-5
(mic position only).
Dipswitch 8 - When set to the "Master" position, the VCA control port acts as a over all system
remote volume control, adjusting all the input channels present on the master section mix bus up
or down simultaneously. When set to the "Input 6" position, the VCA remote control port affects
only the level of INPUT 6.
11. Input 1 Sens
This control adjusts how sensitive the mute send circuitry on INPUT 1 reacts. Setting the control fully
counter-clockwise will lower the sensitivity, and a higher amplitude signal will be required at INPUT 1
to trigger the mute send circuits. Fully clockwise will raise the sensitivity of the mute circuits, where a
lower amplitude signal will trigger a mute send. Careful calibration of this control may be required to
fully utilize the mute circuits’ capabilities. Adjustment of this control should occur after the input trim
(12) for channel 1 is set.
111213
Unswitched Outlet
120V AC 60Hz
Max 500W
120V AC 60Hz 300W
Outlet Breaker
125V AC 4A
Push Reset
Speaker Output 120W
¡
CLASS 2 WIRING
Bridge
In/Out
G
100V70V25V8Com
Zone 2 Out
Remote
VCA
¡
++
Tape Out
A
B
£Ид£К>VКV>ЮКЫ`°]КГ]К/8КЗx££К
nдд®КnЗИООООКМ>Г-Х`°V
Mute
Line Out
Input 6
Zone 2
Input 1
Input 4
Input 5
Level
R
L
Input 3
Trim
Trim
Trim
1
Input 6
Sens
100mV
300mV
Input 5
Input 4 Input 3 Input 2 Input 1
G
G
+
Input 1
Input 2
Trim
5
23
4
Input 4Input 5 Phantom
Input 2Input 3
Line
Line
Line
Line
Mic
Mic
Mic
Mic
G
+
Sens
Trim
6
51
4
6
7
Input 1
Off
Tel/Line
On
Mic
+
23
8
VCA
Low Cut
Master
Off
Input 6
On
G
+
Input 3
Input 6
Input 4
Input 2
Input 5
Mute Rcv
Off
OffOnOff
Off
Off
On
On
On
On
G
+
1W 8¡600
Sel
+
Pre Out
Pwr In
12. Inputs 1-5 Trim
These variable controls allows fi ne tuning of the gain of INPUTS 1 – 5. There is 20dB of variable gain
available. The trim only applies when the input is set to the "Mic" position on the dipswitch.
13. Zone 2 Level
This rotary control will vary the signal level at the Zone 2 output terminals. Fully counter-clockwise (0)
is off; fully clockwise (10) is the maximum output level. The Zone 2 output gets its signal from INPUT
6, volume control.
Specifications are subject to change without notice
AtlasSound.com
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
8
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