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Overview: The Russound X75 is a dual source 2-channel power amplifier.
The X75 features volume and balance controls, as well as A/B speaker switching
on the front panel.
Power Output: The X75 is a Class D amplifier rated at 75 watts per
channel into 4 ohms, and 60 watts per channel into 8 ohms. Both amplifier
channels can be bridged for a higher power mono output of 160 watts into a
single 8 ohm load (The Stereo/Bridge switch on the back panel should be in the
Bridge Mono position when bridging.)
Signal Sensing Inputs: The X75 can be turned on manually or
automatically by setting a switch on the rear panel. For manual power, the front
panel power switch turns the unit on or off. When set to automatic, the unit
will power on when music is sensed on either RCA input connector. Once the
signal is no longer detected, the unit will automatically shut off. Signal
sensing inputs allow the amplifier to easily integrate with multi-room audio
systems and home theater components.
Thermal Protection: The amplifier is designed with a special circuitry
that protects the unit under a thermal overload condition. Thermal protection
mode will only engage when the unit has been run at high volume for extended
periods without adequate ventilation and/or when speaker impedances are below
the minimum levels. For proper ventilation, it is recommended that the amp have
a minimum of 8-1/4" of clearance above, 5-1/8" of clearance behind, and 2-7/16"
of clearance in front of the unit.
Short Circuit Protection: In addition to thermal protection, the X75
also has special circuitry to protect the amplifier from short-circuit
conditions. This can be caused by a faulty speaker or when speaker wires come in
contact with each other. When this condition occurs, the amplifier will shut
down until the short circuit is corrected.
Unswitched Outlet: The X75 has a built-in AC outlet on the back panel
for powering a device such as a small subwoofer or an audio component. The
outlet provides power as long as the X75 is plugged into a live outlet,
regardless of whether or not the amplifier is powered on. The outlet is rated at
120 volts and 400 watts.