Russound A2100 Installation Manual
A2100
Digital Amplier
Installation Manual
2 Russound A2100 Installation Manual
The lightning ash with arrowhead symbol,
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated dangerous
voltage within the product’s enclosure that may
be of sucient magnitude to constitute a risk of electric
shock to persons.
The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
SAFETY INSTRUCTIONS
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE THE COVER. NO USERSERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
3
Russound A2100 Installation Manual
Introduction
The A2100 is a 2-channel digital amplier designed to be used to boost audio
amplication where needed, either as a standalone amplier, or as an addition
to a whole-house distributed audio system in order to provide extra amplier
power in larger rooms or spaces. Its space-saving ½-rack design allows for
quick installation and gives exibility of mixing and matching with other
½-rack products to save valuable equipment rack space.
The powerful 100-watt class D amplier in the A2100 is combined with
features such as 12v trigger control, audio sensing, volume gain adjustment,
and a buered line output that enables even more amplication of the same
audio signal when needed.
Product Features
Class D amplier – The cool running, low-prole, high eciency design makes
the A2100 the perfect choice for even the most space-conscious system
designs
100w per channel – A powerful 100 watts per channel are available to provide
ample power to even the largest of spaces
Loop Output – A buered loop output is available for the audio signal,
allowing additional ampliers to be easily driven from the same signal
Trigger in/out – The A2100 can be activated by a 12VDC trigger signal, and can
activate additional devices at the same time
Multiple Turn-on modes:
Always On - The A2100 is always active and ready for use
Signal-sensing – The A2100 is in a standby mode when no audio signal is
present and will turn on when an audio signal is detected
12v Trigger – Using the 12v trigger allows precise turn on/o when the
amplier is needed, keeping the unit in a power saving standby mode when
not in use
Multiple Output modes:
• 8Ω - optimized mode for 8-ohm stereo output
• 4Ω - optimized mode for 4-ohm stereo output
• Bridge – allows the use of the A2100 as a powerful, 8-ohm mono amplier
PRODUCT OVERVIEW
Removable speaker connectors – allow for quick, secure installation and
accommodate cables of up to 12 ga AWG
Cord Lock – Flip-down cord lock keeps the IEC power cord in its place,
preventing accidental disconnection when moving gear in a stack or when
pivoting a rack for service
Thermal Protection
All Russound ampliers are designed with special circuitry to safeguard the
amplier under a thermal overload condition. Thermal protection mode can
only engage when the unit has been run at high volume for extended periods
of time without adequate ventilation and/or when speaker impedances
are below the minimum levels for the amplier. If this fault occurs, turn
o the amplier, and check that the speaker impedance rating is above the
minimum rating. Also check for adequate ventilation around the amplier and
make adjustments if necessary. Once the unit has cooled to safe operating
temperatures, the amplier may be powered back on.
Protection Circuitry
All Russound ampliers are designed with special circuitry to safeguard the
amplier under a short-circuit condition. A faulty speaker can also cause a
short circuit condition. The front panel LED illuminates orange when the
amplier is in short circuit protection. If this fault condition occurs, turn o the
amplier and check speakers for short circuit conditions when appropriate.
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