Nilfisk MACRO 830, MACRO 1400, MACRO 2400 User Manual
MACRO
User's Manual
PROFESSIONAL HIGH
830/1400/2400
POWER STEREO AMPLIFIER
R
LTO
www.altoproaudio.com
Version 1.0 April 2002
English
SAFETY RELATED SYMBOLS
CAUTION
RISK OFELECTRIC SHOCK
DO NOTOPEN
This symbol, wherever it appears, alerts you
to the presence of uninsulated dangerous voltage
inside the enclosure-voltage that may be sufficient to constitute a risk of shock.
This symbol ,wherever it appears ,alerts you
to important operating and maintenance
instructions in the accompanying literature .
Read the manual .
Protective grounding terminal .
Alternating current /voltage .
Hazardous live terminal .
ON: Denotes the apparatus turns on .
OFF: Denotes the apparatus turns off ,because of
using the single pole switch ,be sure to unplug the
AC power to prevent any electric shock before you
proceed your service .
WARNING: Describes precautions that should
be observed to prevent the danger of injury or
death to the user .
CAUTION: Describes precautions that should
be observed to prevent danger of the apparatus .
WARNING
Power Supply
Ensure the source voltage matches the voltage of
the power supply before turning ON the apparatus.
Unplug this apparatus during lightning storms or when
unused for long periods of time .
External Connection
The external wiring connected to the output hazardous
live terminals requires installation by an instructed
person, or the use of ready-made leads or cords.
Do not Remove any Cover
There are maybe some areas with high voltages
inside , to reduce the risk of electric shock, do not
remove any cover if the power supply is connected.
The cover should be removed by the qualified personnel
only.
No user serviceable parts inside.
Fuse
To prevent a fire, make sure to use fuses with specified
standard (current, voltage, type). Do not use a different
fuse or short circuit the fuse holder.
Before replacing the fuse, turn OFF the andapparatus
disconnected the power source.
Protective Grounding
Make sure to connect the protective grounding to prevent
any electric shock before turning ON the apparatus.
Never cut off the internal or external protective grounding
wire or disconnect the wiring of protective grounding
terminal.
Operating Conditions
This apparatus shall not be exposed to dripping or
splashing and that no objects filled with liquids,
such as vases, shall be placed on this apparatus.
To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
Do not use this apparatus near water.
Install in accordance with the manufacturer's
instructions. Do not install near any heat sources
such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
Do not block any ventilation openings.
No naked flame sources, such as lighted candles,
should be placed on the apparatus.
IMPORTANT SAFETY INSTRUCTIONS
Read these instructions.
Follow all instructions.
Keep these instructions.
Heed all warnings.
Only use attachments/accessories specified by the
manufacturer.
Power Cord and Plug
Do not defeat the safety purpose of the 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
prong. The wide blade or the third prong are provided
for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement
of the obsolete outlet.
Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles ,
and the point where they exit from the apparatus.
Cleaning
When the apparatus needs a cleaning, you can blow
off dust from the apparatus with a blower or clean
with rag etc. Don't use solvents such as benzol,
alcohol, or other fluids with very strong volatility and
flammability for cleaning the apparatus body.
Clean only with dry cloth.
Servicing:
Refer all servicing to qualified personnel. To reduce
the risk of electric shock, do not perform any servicing
other than that contained in the operating instructions
unless you are qualified to do so .
Servicing is required when the apparatus has
been damaged in any way ,such as power supply
cord or plug is damaged , liquid has been spilled
or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.
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Preface
Dear Customer,
Thanks for choosing LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier and thanks for
choosing one of the results of LTO AUDIO TEAM job and researches.
For our LTO AUDIO TEAM, music and sound are more than a job ...are first of all passion and let us say...our
obsession!
We have been designing professional audio products for a long time in cooperation with some of the major brands
in the world in the audio field.
The line presents unparalleled analogue and digital products made by Musicians for Musicians in our R&DLTO
Centers in Italy, Netherlands, United Kingdom and Taiwan. The core of our digital audio products is a sophisticated
DSP (Digital Sound Processor) and a large range of state of the art algorithms which have been developed by our
Software Team for the last 7 years.
Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming
the quality of our job, we'd like to share with you our work and our dreams, paying attention to your suggestions
and your comments.
Following this idea we create our products and we will create the new ones! From our side, we guarantee you and
we will guarantee you also in future the best quality, and the best fruits of our continuous researches and the
best prices.
Our LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier is the result of many hours of listening
and tests involving common people, area experts, musicians and technicians.
The result of this effort is the sophisticated circuit design featuring high power and superb quality together with superior
reliability and stability to provide the highest possible audio performance.
Nothing else to add, but that we would like to thank all the people that made the LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier a reality available to our customers, and thank our designers and all the LTO
staff, there to make possible the realization of products containing our idea of music and sound and there to support
you , our customers, in the best way, conscious that you are our best richness.
Thank you very much.
LTOAUDIOTEAM
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TABLE OF CONTENTS
1. INTRODUCTION.............................................................................................................4
2. FEATURE LIST...............................................................................................................4
3. CONTROL ELEMENTS...................................................................................................4
3.1 The Front Panel
3.2 The Rear Panel
4. INSTALLATION & CONNECTION.....................................................................................6
4.1 Mains Connection
4.2 Rack Mounting
4.3 Audio Connection
a .Wiring Configuration
b .In Line Connection
5. OPERATION ..................................................................................................................7
5.1 Operate MACRO 830/1400/2400 in Stereo Mode
5.1 Operate MACRO 830/1400/2400 in Parallel (Mono) Mode
5.1 Operate MACRO 830/1400/2400 in Bridged Mode
6. CAUTION FOR APPLICATION
.................................................................................................9
6.1 General Application Instruction
6.2 Caution for Speaker Connection
7. TECHNICAL SPECIFICATIONS
...............................................................................................10
7.1 Specifications
7.2 Block Diagram
8. WARRANTY
.............................................................................................................................12
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