AUDAC AMP20 MK2 User manual

AMP20MK2
User Manual
www.audac.eu

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Index
Introduction 5
Precautions 6
Safety requirements 6
Caution servicing 7
EC Declaration of Conformity 7
Waste of Electrical and Electronic Equipment (WEEE) 7
Chapter 1: Connections and connectors 9
Connection standards 9
Chapter 2: Overview AMP20MK2 11
Front panel 11
Rear panel 12
Chapter 3: AMP20MK2 Quick start guide 14
Connecting the AMP20MK2 14
Configuring the AMP20MK2 15
Ready 15
Chapter 4: Technical specifications 16

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Introduction
Mini Stereo Power Amplifier
The AMP20 MK2 is a Mini Stereo Power Amplifier with a power rating of 2 x 15 Watt,
which lends itself perfectly to small speaker systems requiring compact and economical
audio solutions. It offers the ideal solution for applications such as classrooms, offices
and meeting rooms where a small amount of speakers are required.
The compact size and very high efficiency makes it perfectly suited to be hidden in a
closet, on a false ceiling or mounted under a desk or table.
The combination of the stereo balanced line and microphone input make it perfectly
suited for applications where it should be used in combination with projection screens
and video sources while a microphone is connected. Two gain potentiometers make it
possible to control the sensitivity and balance between music and speech, while a switch
allows bridging of the output channels to obtain one channel with merged output power.
A remote wall mixer can be connected for applications where local mixing of the inputs
is desirable, while large distances can be covered between the source and amplifier
using simple CAT5 twisted pair cabling. The volume controller input allows connection
of an additional wall controller for overall volume control.
The Class-D Amplifier technology, standby mode and included switching power supply
makes this device compliant to Energy Star 3.0 and other strict energy efficiency and
environmental requirements.

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Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
• ALWAYS KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE. NEVER
THROW THEM AWAY
• ALWAYS HANDLE THIS UNIT WITH CARE
• CLEAN ONLY WITH DRY CLOTH
• HEED ALL WARNINGS AND FOLLOW ALL INSTRUCTIONS
• NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR
SPLASHING LIQUID. NEVER PLACE AN OBJECT FILLED WITH LIQUID ON TOP
OF THIS DEVICE
• DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS
OR OTHER APPARATUS THAT PRODUCE HEAT
• DO NOT PLACE THIS UNIT IN ENVIRONMENTS WITH A HIGH LEVEL OF DUST,
HEAT, MOISTURE OR VIBRATION
• THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS
• PLACE THE UNIT ON A STABLE BASE OR MOUNT IT IN A STABLE RACK
• ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE
MANUFACTURER.
• UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED
FOR LONG PERIODS OF TIME
• CAREFULLY CHECK THE UNIT’S CONDITION AFTER UNPACKING.
IF THERE IS ANY DAMAGE TO THE CARTON BOX OR THE UNIT ITSELF,
INFORM YOUR VENDOR IMMEDIATELY.
• ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE
EARTHING CONNECTION
• THE INSTALLATION, CONNECTION AND CONFIGURATION OF THE DEVICE
SHOULD BE DONE BY QUALIFIED TECHNICIANS

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CAUTION
• USE CABLES OF THE RIGHT GAUGE FOR CONNECTING LOUDSPEAKERS TO
THE AMPLIFIED OUTPUTS
• USE CABLES WITH CLEAR COLOUR CODING INDICATING THE POLARITY AND
MAINTAIN THE SAME POLARITY THROUGHOUT THE WHOLE SYSTEM.
• ONLY USE THE CORRECT LOAD IMPEDANCE (MIN 4 OHM) WHEN
CONNECTING LOUDSPEAKERS TO THE AMPLIFIED OUTPUTS. EXCEEDING
THESE LIMITS COULD CAUSE FIRE OR OTHER FAILURES.
• DO NOT CONNECT INDUCTIVE LOADS DIRECTLY TO THE AMPLIFIED OUTPUTS
• AVOID ELECTRIC SHOCKS: SWITCH OFF THE AMPLIFIER WHEN CONNECTING
CAUTION - SERVICING
This product contains no user serviceable parts. Refer all servicing
to qualified service personnel. Do not perform any servicing
(unless you are qualified to do so.)
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and
further relevant specifications described in following directives:
2004/108/EC (EMC) and 2006/95/EC (LVD)
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The WEEE marking indicates that this product should not be
disposed with regular household waste at the end of its product
life. This regulation is created to protect both the environment
and human health.
This product is developed and manufactured with high quality
materials and components which can be recycled and/or reused.
Please dispose of this product at your local collection point or
recycling centre for electrical and electronic waste. Do this to
make sure that the product is recycled in an environmental friendly
way, and help to protect the environment in which we all live.

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Chapter 1
Connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed
corresponding to international wiring standards for professional audio equipment.
Cinch (RCA):
For unbalanced line input connections
Tip: Signal Sleeve: Ground
White: Left Red: Right
XLR:
For balanced input connections
Pin 1: Ground
Pin 2: Signal +
Pin 3: Signal -
3-Pin Euro-Terminal Block:
For balanced input connections
Left: Signal - (XLR Pin 3)
Center: Signal + (XLR Pin 2)
Right: Ground (XLR Pin 1)
For balanced input connections:

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For unbalanced input connections:
REMOTE WALL MIXER RJ45 (Audio, +8V DC, -8V DC):
For connection to Remote Wall Mixers (Audio Input & Mixing)
Pin 1 White-Orange AUDIO Left +
Pin 2 Orange AUDIO Left -
Pin 3 White-Green + 8V DC
Pin 4 Blue - 8V DC
Pin 5 White-Blue GND
Pin 6 Green GND
Pin 7 White-Brown AUDIO Right +
Pin 8 Brown AUDIO Right -
VOLUME CONTROLLER RJ45:
For connection to wall mounted volume controllers (Overall volume control)
Pin 1 White-Orange N/C
Pin 2 Orange N/C
Pin 3 White-Green - 8 V DC
Pin 4 Blue 0 ~ - 8V Variable in
Pin 5 White-Blue GND
Pin 6 Green GND
Pin 7 White-Brown N/C
Pin 8 Brown N/C
ATTENTION
The twisted pair cabling must always be ‘straight’. In case
of self made cabling, it must be wired as described above,
to make the system work properly.