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Inputs and Outputs Notes
Slim-Line Design: The Sony
amplifier's slim, low-profile design allows it to work under many driver,
passenger and rear seats of vehicles.
CEA-2006 Compliant: The Sony
amplifier is CEA-2006 compliant with a rating of 50 Watts x 4-channels in 4 ohms
between 20 to 20,000 Hz at 1% THD+N with a signal-to-noise ratio of 90 dBA.
Class D Technology: The Sony
XM-4S uses Class D Technology to covert and amplify music signals with MOSFETs
to high speed pulse signals. This type of amplifier design features high
efficiency and low heat generation.
Pulse Power Supply: The
amplifier utilizes a light-weight Pulse Power Supply system for stable and
regulated output power. This highly efficient design helps regulate fluctuating
voltage from your car's battery while maintaining a low impedance output.
4/3 Channel Amplifier: The Sony XM-4S
is a 4-channel amplifier that is capable of powering four full-range speakers or
the rear channels can be bridged for a 3-channel configuration. In 3-channel
mode the amplifier's front channels remain stereo while the rear channels are
bridged down to a mono-channel output. The amplifier has a maximum rating of 95
watts x 2 + 250 watts x 1 at 4ohms in 3-channel mode.
Note: The front channels of
this amplifier are not bridgeable.
Gain Control: The amplifier
features independent gain control for the front and rear channels.
High Pass Filter: The amplifier
features an 80Hz, 12 dB per octave high-pass crossover for the front channels.
Low Pass Filter: The amplifier
features an 80Hz, 18db per octave low-pass crossover for the rear channels.
Low Boost Circuit: The amp also
features a variable Bass boost which can be adjusted from 0 to +10dB at
frequencies of 40 Hz that only effects the rear channels of the amplifier.
Hi-Level Input: The amplifier
features a Hi-Level speaker input for connecting the amplifier to your factory
or aftermarket stereo that does not use RCA outputs. The amp also is equipped
with a Hi-Level Sensing Power On feature that allows the unit to be activated
without need for the Remote turn-on connection when using the Hi-Level input.
Active Thermal Control: The
Active Thermal Control regulates the unit's operating temperature for stable,
long-term playback at high volume. The amp will restrict maximum output due to
high temperature irregularities.
Protection Circuit: The XM-4S
amplifier features a protection circuit and indicator in case of a short circuit
or bad ground.
Blue Illumination: The
amplifier features two Blue LEDs that can be turned On or Off. These Blue LEDs
will light up the foot area of your car when the amplifier is mounted under a
Inputs and Outputs Notes
Removable Top Surround: All of the
amplifier's connections are located on the front side of the amplifier to make
installation and connection simpler. To access the speaker, ground and power
terminals you must remove the top chrome surround which is attached by 4 phillips-head
screws. Once the chrome surround is reinstalled it protects the amplifier's terminals
from being contacted by other items in your vehicle. The amplifier features the
following inputs and outputs.
- Power/Ground Terminals:
The power and ground screw terminals are 0.375" wide to easily accommodate
- Remote Turn-On Terminal: The
Remote Turn-On lead screw terminal is 0.375" wide to accommodate 8-gauge wire.
- Speaker Terminals: The
amplifier features four pair of 0.375" wide speaker terminals.
- Speaker-level Input Harness:
The amp comes with a 4-channel speaker-level input harness with an 8-pin Molex
plug on one end. This allows you to more easily connect this amplifier to a
factory deck or a receiver without preamp outputs.
- RCA Input: The XM-4S is
equipped with a two sets of Stereo RCA inputs for connection of your aftermarket
stereo to the amplifier.
- Fuse: The amplifier is
equipped with one 40-amp blade fuse.