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Alto mottagare D3

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Sida 1/16
D1/D2/D3/D4
PROFESSIONAL POWER AMPLIFIERS
OWNER'S MANUAL
www.altoproaudio.com
Version 1.3 SEPTEMBER 2007
LTO
R
R
R
RR
English
CAUTION
RISK O F ELECTRIC SHOCK
DO NO T OPEN
IMPORTANT SAFETY INSTRUCTION
TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK PANEL OF THIS EQUIPMENT.
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.
WARNING
To reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Dispose of this product should
not be placed in municipal waste
and should be separate collection.
11.
12.
Move this Equipment only with a cart,
stand, tripod, or bracket,
specified by the
manufacturer, or
sold with the
Equipment. When
a cart is used, use
caution when
moving the cart /
equipment
combination to
avoid possible
injury from tip-over.
Permanent hearing loss may be caused by
exposure to \ extremely high noise levels.
The US. Government's Occupational Safety
and Health Administration (OSHA) has
specified the permissible exposure to noise
level.
These are shown in the following chart:
HOURS X DAY
EXAMPLE
According to OSHA, an exposure to high SPL in
excess of these limits may result in the loss of
heat. To avoid the potential damage of heat, it is
recommended that Personnel exposed to
equipment capable of generating high SPL use
hearing protection while such equipment is
under operation.
8
6
4
3
2
1,5
1
0,5
0,25 or less
SPL
90
92
95
97
100
102
105
110
115
Small gig
train
Subway train
High level desktop monitors
Classic music concert
Rock concert
This symbol, wherever used, alerts you to the
presence of un-insulated and dangerous voltages
within the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
This symbol, wherever used, alerts you to
important operating and maintenance instructions.
Please read.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON: Denotes the product is turned on.
OFF: Denotes the product is turned off.
The apparatus shall be connected to a mains
socket outlet with a protective earthing
connection.
The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.
CAUTION
Describes precautions that should be observed to
prevent damage to the product.
Read this Manual carefully before operation.
Keep this Manual in a safe place.
Be aware of all warnings reported
with this symbol.
Keep this Equipment away from water and
moisture.
Clean it only with dry cloth. Do not use
solvent or other chemicals.
Do not damp or cover any cooling opening.
Install the equipment only in accordance with
the Manufacturer's instructions.
Power Cords are designed for your safety. Do
not remove Ground connections! If the plug
does not fit your AC outlet, seek advice from
a qualified electrician. Protect the power
cord and plug from any physical stress to
avoid risk of electric shock. Do not place
heavy objects on the power cord. This could
cause electric shock or fire.
Unplug this equipment when unused for long
periods of time or during a storm.
Refer all service to qualified service personnel
only. Do not perform any servicing other than
those instructions contained within the
User's Manual.
To prevent fire and damage to the product,
use only the recommended fuse type as
indicated in this manual. Do not short-circuit
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.
IN THIS MANUAL:
1. INTRODUCTION
Thank you for expressing your confidence in LTO products by purchasing one or
more of our D series power amplifiers. The D range includes D1, D2, D3 and D4.
There are 2 channels for the D1/D3, and 4 channels for D2/D4. All models are
rugged, 2 rack-unit amplifiers fan-cooled. They provide a lot of power and a high value
performance. They are all designed for heavy-duty application and they all can drive
4 ohm loads for long periods without overheating. Therefore they are suited to drive
subwoofers with a minimum load of 8 ohm when working in Bridge Mode.
Enjoy your D amplifier and make sure to read this manual carefully before operation!
2. FEATURES
Illuminated Power Switch
Automatic Clip-limiter circuit
Switchable low-frequency filter at 30 Hz
Operating Mode is: Stereo, Parallel or Bridge
Balanced Combo input connectors
Output connectors are speak-on jacks and binding post terminals
Low-noise, variable speed fan
Front panel LED indicating Signal and Clipping and Protection Status
Class D technology, switch power, light weight and high power
Manufactured under TS16949, ISO14001 certified management system
1
1. INTRODUCTION..............................................................................
2. FEATURES.....................................................................................
3. CONTROL ELEMENTS...................................................................5
4. OPERATION...................................................................................8
5. BLOCK DIAGRAM........................................................................11
6. TECHNICAL SPECIFICATION ........................................................12
7. WARRANTY.................................................................................13
1
1

Produktspecifikationer

Varumärke: Alto
Kategori: mottagare
Modell: D3

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