Origin Acoustics A1250 User manual

A1250
Installation Manual
A1250 AMPLIFIER
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12

IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions
• Keep these instructions
• Heed all warnings
• Follow all instructions
• Do not use apparatus near water
• Clean only with dry cloth
• Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions
• Do not install near heat sources such as radiators heat registers, stoves,
or other apparatus (including amplifiers) that produce heat or are combustible
sources.
• Do not defeat the safety purpose of polarized or grounding type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding plug. The wide blade or the third prong
are provided for you safety. If the plug does not fit into your outlet consult an
electrician for replacement or the obsolete outlet.
• Protect the power plug from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only user attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, or table specified by the
manufacturer or sold with the apparatus. When a cart is used, use caution when
moving the car/apparatus combination to avoid injury form tipping over.
• Unplug this apparatus during lightning storms or when unused for
period of times.
• Important Symbols: The lighting flash arrowhead triangular symbol is
to alert the user to the presence of uninsulated ‘dangerous voltage’ within the
product suicient enough to constitute a risk of electric shock.
• Refer all servicing to qualified service personnel. Servicing is required
when the apparatus had been damaged, liquid had been damaged in any way,
such as power supply cord or plug id damaged, liquid had been dropped or
objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally or has been dropped.
• The equipment shall be used at a maximum temperature of 35 degrees
Celsius ambient temperature.
• Do not open the equipment to reduce the risk of electric shock. For
safety reasons it is only allowed to be opened by a qualified service person.
• WARNING: To reduce the risk of fire or electric shock, do not expose this
apparatus to the rain or moisture. And the apparatus shall not be exposed to
dripping or splashing and that no objects filled with liquid, such as vases, shall be
placed on the apparatus.
• The MAINS plug is used as a disconnect device and shall remain
readily operable.
• The product shall be used in an open area or bench.
• No naked flame sources, such as lighted candles, should be placed on
the apparatus.
• The apparatus should be connected to a mains socket outlet with a
protective earthing connection.
• Ventilation should not be impeded by covering the ventilation openings
with items, such as newspapers, table-cloths, curtains, etc.
• This apparatus is suitable for use in tropical climates.

A1250 AMPLIFIER INSTALLATION USER MANUAL
1

Introduction 1
Amplifier Specifications 2
Amplifier Linedrawings 3
Amplifier Positioning 4
Amplifier Features 6
Amplifier Connection Details 8
Connections Overview 10
Amplifier Front Panel LEDs 11
Amplifier Input Options 12
Amplifier Automation 13
Amplifier Controls 13
Amplifier Connector Cables 14
Troubleshooting 16
Technical Assistance 17
Warranty Coverage - 2 Year Limited Warranty 18
Return Process 19
Thank you for purchasing this A1250 amplifier. At Origin Acoustics, we take pride in
providing you with a high quality product. All of Origin Acoustics’ products are designed to
have excellent sound quality, longevity, and a simple installation process.
This instruction booklet covers the necessary information for a smooth installation,
including: the tools you will need, step-by-step instructions for installation, troubleshooting
tips for any errors that may occur, and all warranty information. If for any reason you
experience problems or if you have installation questions please call us at [phone].
Hours of operation are 8:00am to 5:00pm (Pacific Time), Monday through Friday.
Introduction

A1250 AMPLIFIER INSTALLATION USER MANUAL
3
2
A1250 AMPLIFIER INSTALLATION USER MANUAL

 
 
 50 Watts per Channel
 820 Watts
 @4Ω=0.9%/ @8Ω=1.0%
 600mV
 10Hz - 20kHz
 85Hz - 20kHz /-3dB
 10Hz - 150Hz / -3dB
 -75dB
 5mV
 8min
 AC 230V / 50 Hz
AC 110V / 60 Hz
 17'' W (19'' including rack mounts)
1 3/4'' H (2 1/8'' including feet)
10'' D (front to rear chassis)
10 5/8'' D (front to rear speaker phoenix connectors)
 9.1 lb
 TUV Listed and tested under UL/EN60065 for US and Canada
 
100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12


100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12



A1250 AMPLIFIER INSTALLATION USER MANUAL
5
4
A1250 AMPLIFIER INSTALLATION USER MANUAL

 
 
 50 Watts per Channel
 820 Watts
 @4Ω=0.9%/ @8Ω=1.0%
 600mV
 10Hz - 20kHz
 85Hz - 20kHz /-3dB
 10Hz - 150Hz / -3dB
 -75dB
 5mV
 8min
 XXXX
 X min
 X min
 AC 230V / 50 Hz
AC 110V / 60 Hz
 17'' W (19'' including rack mounts)
1 3/4'' H (2 1/8'' including feet)
10'' D (front to rear chassis)
10 5/8'' D (front to rear speaker phoenix connectors)
 9.1 lb
 TUV Listed and tested under UL/EN60065 for US and Canada

100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12


100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12

 

A1250 AMPLIFIER INSTALLATION USER MANUAL
7
6
A1250 AMPLIFIER INSTALLATION USER MANUAL

Rack-mount ears and hardware are included, allowing for table-top or 1U AV rack-
mount installation. Placing the amplifier can have a large impact on performance
and longevity.
Please take the following guidelines into consideration:

• Ensure that the unit is in a well-ventilated area that provides adequate cooling.
• A  should be allowed  and  the amplifier for
optimum ventilation & performance.
• A  should be allowed  of the amplifier for optimum
ventilation & performance.
• A  should be allowed  the amplifier for cables and
connnectors to connect freely for optimum performance.
• Attach ears to the amplifier if mounting into rack.
• Bottom feet on the amplifier chassis may be removed if necessary.
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”







page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3”
3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
100-120V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSET10AL / 250V
LEVEL
ZONE6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC12V
Manufacturedin China
LEVEL
ZONE5
(L)+-(R)
LEVEL
ZONE4
(L)+-(R)
LEVEL
ZONE3
(L)+-(R)
LEVEL
ZONE2
(L)+-(R)
LEVEL
ZONE1
(L)+-(R)
SPDIFIN
L
R
IN
LOOPOUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3”
3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”
page | 6
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
2” MINIMUM OF FREE AIR SPACE BEHIND UNIT
(FOR CABLES AND CONNECTORS)
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” MINIMUM OF FREE AIR SPACE ON SIDE
3” 3”
5”
5”
5” MINIMUM OF FREE AIR SPACE ABOVE
5” MINIMUM OF FREE AIR SPACE BELOW
3” MINIMUM OF FREE AIR SPACE ON EACH SIDE
3”
3”
2”
5”
5”

A1250 AMPLIFIER INSTALLATION USER MANUAL
9
8
A1250 AMPLIFIER INSTALLATION USER MANUAL


Origin Acoustics amplifiers are rock-solid performers with clean gain-on-a-wire
amplification, subdued refined aesthetics, and arrive rack-ready with ears. With
12 channels of 50W power, global and local inputs, the A1250 is a solution for up
to six individual zones of multi-room background audio.
The A1250 is a six-zone amplifier that takes up only 1U of rack space. The height
requirements make it easy to add to any setup and each zone can be shared by
one of two global source busses or one local input per zone.

Multi-Room Distributed Audio
Surround Channels (Processer Required)
Multiple Speakers in One Area

These amplifiers are eicient. They produce less heat and occupy minimal
rack space. The A1250 just works, every time, for years to come. This amplifier
features rack ears and feet for flexibility in the installation method. It only
requires 1U of rack space, with the proper gaps for cooling between amplifiers.

The amplifier is on when you need it and o when you don’t. The A1250 are
turned on out of standby mode either by sensing the audio signal from a preamp
or receiver or by a 12-Volt signal from any number of components and features a
12-Volt output to trigger other components as necessary.

Each zone features a secure Phoenix-style connector that accommodates up to
14 gauge speaker wire.

• Multi-channel / multi-zone
• Digital high power amplification
• Low impedance
• Low Noise
• Small chassis
• Less Heat
• Eiicient design
• Rack mountable
• Automation circuit

Our amplifiers utilize modern digital technology packed into a small chassis.
True to all of our amplifiers, they are neutral in coloration and provide high
quality sound for all applications.

Each zone (A1250) is protected in isolation with an operational LED indicator
on the front panel. This way, problems can be quickly identified visually. If a
problem is found within a zone, the other individual channels will continue to
play, even as the trouble zone is o.
Global and Local Inputs
With two global input busses available for each stereo zone, a local input is
provided as well. The global loop out adds even more flexibility with more amps
or specialized equipment.
Each zone can be assigned to one of two global inputs (Analog and Digital) or
individual local inputs. The output gain is individually controlled for the zone with
a single knob. This control stays consistent regardless of the input selected. This
setting is typically the final control for your gain staging, so ensure you set the
volume at a level that will not introduce distortion or clipping.

A1250 AMPLIFIER INSTALLATION USER MANUAL
11
10
A1250 AMPLIFIER INSTALLATION USER MANUAL


Red: O/Standby
Blue: On/Operating

Channels Status LEDs: 1-12
Connects additional amplifiers/ Extend and use to connect
to a subwoofer

use supplied 1/8” stereo mini jack to RCA jacks to connect to mult-source
preamplifier zone outputs
On / Auto / 12V Trigger Switch

Switch between on/o.

 Connects the le and right female RCA input to the le and right front
output connections on a receiver or pre-amp processor.

per zone
 per zone
per zone
Zone 6 only

 Turns on the amp when a 12V signal is received from another
12V trigger device.
  Sends a 12V signal to another 12V trigger device.
Use 1/8” mono jacks to connect 12VDC trigger inputs and outputs when power mode
switch is in down position.

Additional fuse included for servicing.

IEC power cord.

Each amplifier channel is stable down to 4 ohms. This design allows for a pair of 8-ohm
speakers to be connected to each channel, ideal in the case of larger systems that
require more coverage.
H
J L
G
NP
I
O
A
4 Ω minimum
LFE SUB OUT
Single Sub Connection


 




 
 









 


SWITCHED OUTLET
AV RECEIVER
CEN
SUB
RS
LSL
R
OUT
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
C
K
F
D E
4 Ω minimum
LFE SUB OUT
Single Sub Connection


 




 
 









 


SWITCHED OUTLET
AV RECEIVER
CEN
SUB
RS
LSL
R
OUT
M
B

A1250 AMPLIFIER INSTALLATION USER MANUAL
13
12
A1250 AMPLIFIER INSTALLATION USER MANUAL
The amplifier has small LEDs on the front panel to indicate the power state and
channel status. The Power LED lights up to indicate the amplifier is ON. There is
a LED indicating the channel state. Use the LEDs to identify and trouble shoot
channels that are not working. If a channel is in fault mode, power down the amp,
identify and fix the issue. When complete, power up the amp again to check the
issue has been resolved.
• Power ON = Blue
• Power OFF = Red
• Channel ON = Blue
• Channel Fault = Red
• Channel Fault conditions are due to : shortcircuit, thermal, or overload failures.

 All connections and switching must be done with the amplifier
turned o. Connect the power cord last to ensure that the amplifier is o during
all the connections and set up.

All RCA audio connections on the amplifier are gold-plated, for superior, non-
corrosive, and long-lasting performance.

Use high-quality RCA cables that feature low impedance with adequate shielding
and high-quality connectors. Using removable speaker connectors ensures easier
wiring, faster installation, and troubleshooting.

A detachable fused EIC grounded power cable defeats, noise, simplifies
troubleshooting and adds protection needed.

Some stereo zones use 1/8” stereo jacks instead of RCA connections.
The smaller space taken up by the stereo connection oers an in and out
preamplifier connection for adding additional amplifiers, speakers or subwoofers
in each zone.

Use up to 14 gauge stranded two-conductor speaker wire. Connect the
appropriate conductor to each screw terminal, observing correct polarity.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER OR BACK. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO AUTHORIZED
SERVICE PERSONNEL.
CAUTION: WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. THE
APPLIANCE SHALL NOT BE EXPOSED TO DRIPPING OR
SPLASHING. NO OBJECTS FILLED WITH LIQUIDS SHALL
BE PLACED ON THE APPLIANCE.

100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
B
A

A1250 AMPLIFIER INSTALLATION USER MANUAL
15
14
A1250 AMPLIFIER INSTALLATION USER MANUAL

The amplifier has an In/Out 12VDC trigger.
This flexibility to turn on the entire amplifier or trigger other devices via an audio
signal oers additional control and automation options. Easily configure the
amplifiers to activate with a global 12V Trigger or in Auto mode using a sensitive
audio sensing circuit.

Zone 6 of the amplifier can be adjusted as a Full Range or Low Pass Function.
FR = Full Range / LP = Low Pass
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+
-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12

The amplifier oers a bus input with a loop output as well as channel- specific
inputs. This gives the option to expand the zone amplifier beyond only two
channels, taking one stereo input signal and distributing it to up to a maximum of
6 stereo zones of audio, or 12 channels.
There is also the option of using each amplifier channel independently for multi-
zone / multisource or home theater applications.
100-120 V ~ 60Hz / 220-240V ~ 50Hz 600W
FUSE T10AL / 250V
LEVEL
ZONE 6
(L)+-(R)
POWER
MODE
ON
AUTO
TRIGGER
DC 12V
Manufactured in China
LEVEL
ZONE 5
(L)+-(R)
LEVEL
ZONE 4
(L)+-(R)
LEVEL
ZONE 3
(L)+-(R)
LEVEL
ZONE 2
(L)+-(R)
LEVEL
ZONE 1
(L)+-(R)
SPDIF IN
L
R
IN
LOOP OUT
POWER
1 2 3 4 5 6
7 8 9 10 11 12
KK
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
N