User Guide

DPH7500z 5
4. FUNCTIONS OF DPH7500z
With the DPH7500z, you can enjoy the DSP and
equalizer effects by simulating the sound field
using the easy menu with simple operation (easy
mode), and also by simulating the sound field by
adjusting the sound according to the width of the
car interior (professional mode).
• Choose either easy mode or professional mode
to adjust the sound field and sound quality.
• The following major functions are available on
the DPH7500z:
Functions common to each mode
Spectrum analyzer display, auto loudness, etc.
Easy mode
Graphic equalizer function, DSP function, etc.
Professional mode
Space equalizer function, parametric equalizer
function, etc.
• In this manual, graphic equalizer is hereafter
referred to as G.EQ, space equalizer referred
to as S.EQ, and parametric equalizer referred
to as P.EQ.
Functions common to each mode
7-band spectrum analyzer display
Spectrum analyzer display of 7 bands is possible.
Auto Loudness Adjustments
You can vary the amount of compression be-
tween 0 and 10 without changing the loudness.
Subwoofer Adjustments
The following adjustments can be made if a
subwoofer is connected:
1. You can set the speakers to:
“OFF”, “MONO” and “STEREO”.
2. You can set the subwoofer volume to:
0 to 14
3. You can set the low-pass filter frequency to:
50Hz, 80Hz or 120Hz.
∗ The slope of the low-pass filter is 24dB/oct.
High-pass Adjustments
You can select the frequency of the high-pass
filter from Through, 50Hz, 80Hz and 120Hz.
∗ The slope of the high-pass filter is 18dB/oct.
Test-tone Output
Test tones can be output in the following order to
check the speaker connections:
FRONT-LEFT ➜ FRONT-RIGHT ➜ REAR-LEFT ➜
REAR-RIGHT ➜ WOOFER-LEFT ➜ WOOFER-
RIGHT ➜ ALL(all speakers) ➜ OFF(no sound)
Title Input
You can assign and display titles for the DSP,
G.EQ, S.EQ and P.EQ settings you have set.
4V preout
The preout voltage is raised to 4 V, providing char-
acteristics that are resistant to noise during sig-
nal transmission.
Note:
• Since noise or sound distortion may occur when
an external amplifier is connected to this unit, keep
the amplifier gain at a lower level.
Digital signal input terminal
Since 4 digital input signal terminals are provided
with this unit, up to 2 units with digital signal out-
put terminals (such as a CD changer) can be
connected.
Notes:
• When the DPH7500z and a unit with digital signal
output terminal are connected with the digital op-
tical fiber cable, and the digital optical fiber cable
is disconnected, no sound is heard. Reconnect the
digital optical fiber cable.
• If you want to listen to music from an analogue
input, disconnect the digital optical fiber cable and
perform a system check by operating the source
unit.