Location And Function Of Controls - Sony XM-752EQX Operating Instructions Manual

Features
• Maximum power output of 150 watts per
channel (at 4 ohms).
• This unit can be used as a monaural amplifier
with a maximum output of 400 watts.
• Direct connections can be made with the speaker
outputs of your car audio if it is not equipped
with the line output (High tevel input
connection).
• Low-pass filter, high-pass filter, and five band
equalizer circuit are built-in.
• The DIRECTswitch can be used to bypass the
low-pass filter, high-pass filter, and equalizer
circuit for more enjoyable high quality sound.
• You can visually confirm the output level of both
the left and right sides with the power level
indicator.
• Dual mode connection possible for a multi-
speaker system.
• Protection circuit and indicator provided.
• Pulse power supply* for stable, regulated output
power.
Pulse power supply
This unit has a built-in _ower regulator which converts
the power supplied by the DC 12 V car battery into high
speed pulses using a semiconductor switch. Tl_se pulses
are stepped up by the built-in pulse transformer and
separated into both positive and negative power supplies
before being converted into direct current again. This is
to regulate fluctuating voltage from the car battery. This
light weight power supply system provides a highly
efficient power supply with a low impedance output.
Location and Function of Controls
[] POWER/PROTECTOR indicator
• OVER CURRENT lights up green during normal operation. The color
will change from green to red when receiving a powerful signal.
• OFF SET lights up green during normal operation. The color will
change from green to red when the voltage going out to the speaker
terminal or the pin jack is too high.
• THERMAL lights up green during normal operation. The color will
change from green to red when the temperature rises to an unsafe
level. The color will return to green when the temperature returns to
normal.
[] Power level indicator
Indicates the output levels of both the left and right sides. The scale is
calibrated for use with 4 ohms speakers.
[] LEVELadjustment control
The input level can be adjusted with this control when using source
equipment made by other manufacturers. Turn it to MAX when the
output level of the car audio seems low. To reduce noise, turn the LEVEL
control (gain) of the amplifer to IVIINand the volume of the car audio up.
[] DIRECTswitch
When the DIRECT switch is set to ON, the signal does not go through the
low-pass filter, high-pass filter and equalizer circuit.
[] EQUAUZER level control
You can change the settings of the five band (50 Hz, 200 Hz, 800 Hz, 3,2
kHz, 12.8 kHz ) equalizer.
[] Cut-off frequency adjustment control
Sets the cut-off frequency (50-200 Hz) for the low-pass or high-pass filters.
[] FILTERselector switch
When the switch is in the LPF position, the filter is set to low-pass. When
in the HPF position, the filter is set to high-pass. When the DIRECT switch
is set to ON, these filters do not work.
Switch settings for each system configuration
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