Russound X125, X225 User Manual
X125 - X225
Dual Source Power Ampliers
Installation Manual
SAFETY INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE THE COVER. NO USERSERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
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
Read Instructions - All the safety and operating 1.
instructions should be read before the appliance is
operated.
Retain Instructions - The safety and operating 2.
instructions should be retained for future reference.
Heed Warnings - All warnings on the appliance in the 3.
operating instructions should be adhered to.
Follow Instructions - All operating and user 4.
instructions should be followed.
Water and Moisture - The appliance should not 5.
be used near water; for example, near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool. The apparatus
shall not be exposed to dripping or splashing liquids
and no objects lled with liquids, such as vases, shall
be placed on the apparatus.
Carts and Stands - The appliance should 6.
be used only with a cart or stand that is
recommended by the manufacturer.
An appliance and cart combination
should be moved with care. Quick
stops, excessive force and uneven
surfaces may cause the appliance and
cart combination to overturn.
Location of the Amplier - Do not mount this unit 7.
under a kitchen cabinet. Do not expose the amplier
to direct sun light or heating units as the amplier
internal components’ temperature may rise and
shorten the life of the components. Avoid damp and
dusty places.
Ventilation - The appliance should be situated so 8.
that its location or position does not interfere with
its proper ventilation. For example, the appliance
should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation openings, or
placed in a built-in installation, such as a bookcase or
cabinet that may impede the ow of air through the
ventilation openings.
Heat - The appliance should be situated away from 9.
heat sources such as radiators, heat registers, stoves,
or other appliances (including ampliers) that
produce heat.
Power Sources - The appliance should be connected 10.
to a power supply only of the type described in
the operating instructions or as marked on the
appliance.
Grounding or Polarization - Precaution should be 11.
taken so that the grounding or polarization means of
an appliance is not defeated.
Power Cord Protection - Power supply cords should 12.
be routed so that they are not likely to be walked
on or pinched by items placed upon or against
them, paying particular attention to cords at plugs,
receptacles, and the point where they exit from the
appliance.
Main Power Disconnect - The power switch is a single-13.
pole switch. When the switch is in the “O” position,
the appliance is not completely disconnected from
the main power. The main power plug is used as the
disconnect device and shall remain readily operable.
When installing the product, ensure that the plug is
easily accessible.
Cleaning - The appliance should be cleaned only as 14.
recommended by the manufacturer.
Non-Use Periods - The power cord of the appliance 15.
should be unplugged from the outlet when left
unused for a long period of time. To remove all power
(supply mains) from the appliance, remove the plug
from the wall outlet.
Object and Liquid Entry - Care should be taken so that 16.
objects do not fall and liquids are not spilled into the
enclosure through the openings.
Servicing - The user should not attempt to service the 17.
appliance beyond that described in the operating
instructions. All other servicing should be referred to
qualied service personnel.
Damage Requiring Service - The appliance should be 18.
serviced by qualied service personnel when:
A. The power supply cord or the plug has been
damaged.
B. Objects have fallen, liquid has been spilled into the
appliance;
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate
normally; or
E. The appliance has been dropped or the enclosure
is damaged.
2 Russound X125-X225 Installation Manual Rev. 1
Safety Instructions ..................................................................................................................2
Product Overview ..................................................................................................................4
Front and Rear Panels ............................................................................................................5
System Conguration - Stereo Mode ............................................................................... 6
System Diagram - Stereo Mode..........................................................................................7
System Conguration - Bridged Mode ............................................................................ 8
System Conguration - External Volume Control ........................................................ 9
Technical Specications ......................................................................................................10
Warranty ...................................................................................................................................11
TABLE OF CONTENTS
Rev. 1
Russound X125-X225 Installation Manual
3
PRODUCT OVERVIEW
Introduction
The Russound X125 and X225 are 2-channel dual source power ampliers with
auto-source switching. Each features Primary and Secondary audio line inputs
with a loop out to another zone, receiver, or device from the secondary source.
A speaker-level input can be connected and assigned as either the primary or
secondary source. This amplier can be used for power upgrades in zones for
large speaker selector or volume control systems.
The X125 is rated at 125 watts per channel into 4 ohms, and 80 watts into 8
ohms. The X225 is rated at 225 watts per channel into 4 ohms, and 150 watts
into 8 ohms. Each amplier output channel incorporates robust protection
circuitry for reliability and safety under extreme circumstances.
With the Stereo/Bridge Mono switch in the Bridge Mono position, both
amplier channels are combined for a higher powered mono output. In Bridge
mode the X125 is rated at 250 watts of power into a single 8 ohm load, and the
X225 is rated at 470 watts of power into a single 8 ohm load.
The 12V Trigger In/Out allows each amplier to be activated by other devices
or to activate other electronics via a 3.5 mm mini phone plug cable, with 100mA
current capability.
Thermal Protection
All X Series ampliers are designed with special circuitry to safeguard the
amplier under a thermal overload condition. Thermal protection mode will
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. In thermal protection mode the amplier
will automatically stop output. 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
Special circuitry has been designed into the amplier to safeguard under a
short-circuit condition. A faulty speaker can also cause a short circuit condition.
If this fault condition occurs, turn o the amplier and check speakers for short
circuit conditions when appropriate. The amplier power must be cycled for
the unit to return to normal operation.
Installation
The ampliers can be placed on a shelf in an equipment rack or on a table
or cabinet. Be sure to leave at least 2 inches of space around each side of the
amplier to allow for ventilation and heat dissipation.
Front Panel Controls
On the front panel of the X125 and X225 ampliers are the power button plus
speaker selector, balance and volume adjustment.
Power - the front panel switch will manually switch the power on or o.
Speaker selector - select speaker pair A (main) or speaker pair B (auxiliary) for
audio output. You can use speakers A and B together, as long as the speakers
are at a minimum 8-ohm impedance.
Balance - adjust speaker output balance between right and left channels. The
default setting is at center.
Volume - adjust the speaker output volume. If using Bridged mode, set the
volume at minimum, then adjust to the desired level.
Power On - Manual, Auto, Remote
The X125 and X225 ampliers can be turned on manually or automatically by
setting a switch on the rear panel. For manual power on or o, set the switch to
Normal and press the Power button on the front panel. For automatic power on,
set the switch to Auto On. When music is sensed on any input, the amplier's
signal sensing sends a command for it to power on. Once the signal ends, the
amplier turns o in about 4 minutes. To turn the amplier on remotely, set
the switch to Trigger and connect a 3.5mm phone plug remote triggering wire
from the device to the 12V Trigger In on the amplier.
NOTE: The front panel Power button must be in the "On" position for the 12V
trigger and Auto On features to work.
Speaker Cable
When connecting speakers to the ampliers, use a minimum 16 gauge and
maximum 12 gauge stranded copper cable. Avoid leaving stray strands and
keep polarity consistent.
4 Russound X125-X225 Installation Manual Rev. 1
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