Art SLA-2 Manuale utente
The ART
SLA-2 Studio Linear Amplifier
TABLE OF CONTENTS
Safety Precautions ....................................................................................... 2-3
Introduction .................................................................................................... 4
Installation ...................................................................................................... 5
AC Power Hookup ....................................................................................... 5
Audio Connections ...................................................................................... 5
Security Cover............................................................................................... 6
Controls and Indicators ................................................................................. 7
Power Switch ............................................................................................... 7
Channel Attenuators ................................................................................... 7
Signal LED Indicator ................................................................................... 7
Clip LED Indicator ....................................................................................... 7
Protect LED Indicator .................................................................................. 8
Rear Panel Connections ............................................................................... 9
¼” Input Jacks.............................................................................................. 9
XLR Input Jacks ........................................................................................ 10
EuroBlock Barrier Strip................................................................................ 10
Amp Mode Switch ..................................................................................... 10
Output Binding Post ............................................................................. 10-11
SmartFan™ ............................................................................................... 11
Fuse .......................................................................................................... 11
AC Power Input ......................................................................................... 11
Ground Lift Switch ..................................................................................... 12
Operation ................................................................................................. 12-13
Warranty Information .................................................................................. 14
Service .......................................................................................................... 15
SLA-2 Specifications ................................................................................... 16
2
IMPORTANT SAFETY INSTRUCTION – READ FIRST
This symbol, whenever it appears, This symbol, wherever it appears, alerts
alerts you to the presence of uninsulated you to important operating and maintenance
dangerous voltage inside the enclosure-voltage instructions in the accompanying literature.
that may be sufficient to constitute a risk of shock. Read manual.
Read instructions:
Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment.
Follow the operating instructions printed in this user guide.
Do not open:
There are no user serviceable parts inside. Refer any service work to qualified technical personnel only.
Power sources:
Connect the unit to mains power only of the type described in this user guide or marked on the rear panel. The power
source must provide a good ground connection.
Power cord:
Use the power cord with sealed mains plug appropriate for your local main supply as provided with the equipment. If the
provided plug does not fit into you outlet consult your service agent. Route the power cord so that it is not likely to be
walked on, stretched or pinched by items placed upon or against.
Grounding:
Do not defeat the grounding and polarization means of the power cord plug. Do not remove or tamper with the ground
connection on the power cord.
Ventilation:
Do not obstruct the ventilation slots or position the unit where the air required for ventilation is impeded. If the unit is to be
operated in a rack, case or other furniture ensure that it is constructed to allow adequate ventilation.
Moisture:
To reduce the risk of fire or electrical shock do not expose the unit to rain, moisture or use in damp or wet conditions. Do
not place container of liquid on it, which may spill into any openings.
Heat:
Do not locate the unit in a place close to excessive heat or direct sunlight, as this could be a fire hazard. Locate the unit
away from any equipment, which produces heat such as: power supplies, power amplifiers and heaters.
Environment:
Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco ash, drink spillage and
smoke, especially that associated with smoke machines.
Handling:
To prevent damage to the controls and cosmetics avoid rough handling and excessive vibration. Protect the controls from
damage during transit. Use adequate padding if you need to ship the unit. To avoid injury to yourself or damage to the
equipment take care when lifting, moving or carrying the unit.
Servicing:
Switch off the equipment and unplug the power cord immediately if it is exposed to moisture, spilled liquid, objects fallen
into opening, the power cord or plug becomes damaged during a lightning storm or if smoke odor or noise is noted. Refer
servicing to qualified technical personnel only.
Installation:
Install the unit in accordance with the instruction printed in the user guide.
3
SAFETY PRECAUTIONS
Warning: For optimum performance and reliability, do not operate the
amplifier with a speaker load of less than 4 Ohms per channel, or any
combination of speakers that together are less than 4 Ohms.
Using one speaker per channel, it must be rated at 4 or more Ohms.
Using two speakers per channel, they must each be rated at 8 Ohms,
or greater. When in bridge mode, the speaker should be rated at 8
Ohms, or greater.
Fill in the following information for your reference:
Date of purchase ___________________
Purchased from ___________________
SERIAL NUMBER ___________________
4
INTRODUCTION
Thank you for purchasing an ART SLA-2 Studio Linear Amplifier - and
congratulations, you now own one of the most versatile amplifiers available.
Offering a superb level of sound quality, the SLA-2’s clean and powerful
circuitry combined with a straightforward user interface quickly and easily
delivers the power you need for professional and project studio monitoring.
FEATURES:
• Extremely low noise, discrete linear design
• 200 Watts/Channel @ 8 Ohms
• 560 Watts/Bridged Mono @ 8 Ohms
• Toroidal transformer
• 10 Hz to 40 kHz within 1dB
• XLR, Euroblock & ¼” Inputs
• Thermal dependent cooling system
• Multi-way binding post outputs
• Low profile 1U rack-mountable design
• All steel chassis
• Optional tamper-proof front panel security cover included
• Perfect for professional and project studios, and commercial
installations
5
INSTALLATION
The SLA-2 may be used in a wide variety of project and professional
studio environments. Self-contained in a steel and aluminum
enclosure, the unit is designed for many years of use. For greater
reliability, we recommend that you not place the unit directly under or
on top of other sources of heat. It is important that any rack-mountable
unit is properly ventilated, and the SLA-2 is no exception.
AC POWER HOOKUP
The SLA-2 has an internal power supply designed to operate at 120
VAC @ 50 to 60 Hz. Units manufactured for use outside of North
America have been modified to comply with the required electrical
specifications.
AUDIO CONNECTIONS
Audio connections to and from the SLA-2 are balanced XLR [Pin 2 =
Hot (+), Pin 3 = Cold (-), Pin 1 = (Ground)] and balanced or
unbalanced ¼” [Tip = Hot (+), Ring = Cold (-), Sleeve = (Ground)].
EuroBlock connections: can be wired balance or unbalanced.
See diagram on page 10
6
SECURITY COVER
For commercial installations it may be desirable to set the gain controls on
the power amp, and then make them inaccessible to non-qualified operators.
This can be accomplished by using the Security Cover Plate which is included
with the SLA-2.
Simply set the channel attenuators to the desired gain settings, then press the
knobs into the chassis until they lock in their recessed position. Then remove
the two small phillips head screws, one on each side of the two channel
attenuator knobs. Use these same screws to attach the security cover plate to
the front panel, thereby covering the two channel attenuators, making them
tamperproof.
See diagram below
7
CONTROLS & INDICATORS – FRONT PANEL
FRONT PANEL DIAGRAM
POWER SWITCH
The Power Switch is located on the front of the unit, directly in the
center. During initial installation, make sure the attenuators for
channels one and two are set to a low volume level before applying
power.
CHANNEL ATTENUATORS
The dials for channel one and channel two’s volume attenuators are
located to the left and right of the Power Switch. When set to zero (fully
clockwise), there is no attenuation of volume. As the attenuation
amount increases by turning counterclockwise, the volume is reduced.
Full attenuation is at - infinity. The attenuators are calibrated in dB.
SIGNAL INDICATOR LED
This LED indicates that a signal is present. The LED will glow when the
amplifiers output signal is within approximately 30dB of full scale.
CLIP INDICATOR LED
This LED indicates that the power amp is clipping. This LED comes on
when the output signal from the amplifier begins to distort. When there
is significant clipping, lower the input gains to reduce clipping, as well
as the risk of damage to the speakers/monitors.
8
PROTECT INDICATOR LED
The LED will glow when the channel goes into protect mode. In protect
mode, the output signal to the speakers will be muted (channel
specific). If there is a fault condition at the speaker outputs (due to a
severe load or short) the LED will light until the fault is removed.
The protect lights will also light during power up and down, to indicate
that the signal is muted.
9
REAR PANEL CONNECTIONS
REAR PANEL DIAGRAM
It is easy to interface the SLA-2 with a wide variety of equipment. All
inputs and outputs are located on the rear panel. Standard EuroBlock,
¼” and XLR inputs and binding post outputs make patching simple.
INPUTS
The SLA-2 has three styles of input connections: EuroBlock, XLR and
¼”. Use these connections to connect the output signal from a mixer,
preamplifier, crossover, or EQ to the amplifier. Balanced connections
are recommended for cable runs longer than 20 feet. For cable runs
under 20 feet, the unbalanced connections can be used.
You may also use the two different types of input cables to jump a
parallel connection to another amp. For example: connect an XLR
cable to the input of channel one, then connect a ¼” cable to the input
jack of channel one and jump that cable to the input of another amp or
use the EuroBlock connections.
¼” INPUT JACKS
The ¼” Input jacks are wired as follows: Tip is positive, Ring is
negative, and Sleeve is ground. This connection can be used for both
balanced or unbalanced connections.
10
XLR INPUT JACKS
The XLR Input jacks are Pin Two positive, Pin Three negative, and Pin
One is ground. This connection is for balanced connections.
EUROBLOCK BARRIER STRIP
Insert the wires, then snug down with the set screw. The entire barrier
strip can be removed for quick service without disconnecting the
individual wires.
EURO BLOCK DIAGRAM
AMP MODE SWITCH
The SLA-2 Amp Mode Switch allows you to choose between Stereo
Mode and Bridged Mono Mode. Make sure that power is off and that
your speakers are wired appropriately when changing this mode.
OUTPUT BINDING POST
The SLA-2 Outputs are multi-connection jacks. You can use banana
jacks, spade connectors or bare wire.
Bare Wire Connections – loosen the red and black caps on the
binding posts (don’t completely remove). Strip back the wire insulation
½”, then insert the bare wire into the hole on the side of the plastic
assembly. Once it is in, screw the binding post cap down on the wire.
Be sure that the wire connected to one post does NOT come in contact
with that of another post.
-Ch2- -Ch1-
+
+
__
Altri manuali per SLA-2
1
Indice
Altri manuali Art Amplificatore
Art
Art HeadAmp4 Manuale utente
Art
Art SLA-4 Manuale utente
Art
Art DI/O Preamp System II Manuale utente
Art
Art Pro VLA Manuale utente
Art
Art Tube MP PS Manuale utente
Art
Art DIGITAL MPA II Manuale utente
Art
Art Project Series Manuale utente
Art
Art HEADAMP 6 Manuale utente
Art
Art Pro Channel Manuale utente
Art
Art Tube PAC Manuale utente
Art
Art Pro VLA Manuale utente
Art
Art Pro Channel Manuale utente
Art
Art Tube MP Studio V3 Manuale utente
Art
Art SDA-1 Istruzioni operative
Art
Art PRO CHANNEL II Manuale utente
Art
Art PRO MPA II Manuale utente
Art
Art TUBEOPTO 8 Manuale utente
Art
Art Tube MP OPL Manuale utente
Art
Art Tube Channel Manuale utente
Art
Art TPS II Manuale utente
