Setting the unit – Pioneer PRS-D400 User Manual
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Setting the Unit
Terminal Cover
Before setting up
the unit, unfasten
the screws with a
4 mm hexagonal
wrench and remove
the terminal cover.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaker that is
connected to the speaker output connector and the car stereo system:
* See the “Cut Off Frequency Control” section.
LPF/HPF
Select Switch
Audio frequency
range to be output
Speaker
Type
Remarks
LPF (Left)
* – 40 Hz to 120 Hz
Subwoofer
Connect a subwoofer.
OFF (Center)
Full range
Full range
HPF (Right)
* 40 Hz to 120 Hz –
Full range
Use if you want to cut the very
low frequency range* because
it is not necessary for the
speakers you are using.
Input Switch
It is possible to input from a car stereo external output
(subwoofer output) or a car stereo speaker output. When
using an external output (subwoofer output), slide the
switch to the left. For connection instructions, see the
“Connection Diagram” section. When using a speaker
output, slide the switch to the right. In this case, it is
necessary to use the supplied speaker input wire with RCA
pin cord. For details, see the “Using the Speaker Input”
section.
Gain Control
Adjusting the gain controls A and B will help match the output
of the car stereo to the Pioneer amplifier. Normally, set the
gain controls to the NORMAL position. If the output is low,
even when the volume of the car stereo is turned up, turn
these controls clockwise. If there is distortion when the
volume of the car stereo is turned up, turn these controls
counter-clockwise.
• If you only use one input plug, set the gain controls for speaker
outputs A and B to the same position.
• When using with an RCA equipped car stereo (standard output
of 500 mV), set to the NORMAL position. When using with an
RCA equipped Pioneer car stereo with max. output of 4 V or
more, adjust level to match the car stereo output level.
Power Indicator
The power indicator lights
when the power is switched
on.
Cut Off Frequency Control
If the LPF/HPF select switch is set to LPF or
HPF, you can select a cut off frequency
from 40 Hz to 120 Hz.
Input Select Switch
For two-channel input, slide
this switch to the left. For
four-channel input, slide this
switch to the right.
BFC (Beat Frequency
Control) Switch
BFC switch is on the bottom of
the unit. If you hear a beat while
listening to an MW/LW
broadcast with your car stereo,
change the BFC switch using a
small standard tip screwdriver.
MAN-PRS-D400-GB.fm Page 4 Tuesday, February 21, 2006 3:43 PM