Owner's Manual
Table Of Contents
- Reference Guide
- Owners Manual (Downloaded from Eclipse Web Site, Not Supplied with Product)
- Reset
- Clock Set
- Demo Mode On / Off
- Removing / Attaching the Faceplate
- Table of Contents
- Parts & Controls
- Basic Operation
- CD / MP3 / WMA Operation
- USB Music File Player Operation
- Bluetooth Audio Operation
- Bluetooth Hands-Free Function
- Tuner Operation
- Using the Remote Control
- ESN Security
- Adjusting Audio Settings
- Display Adjustments
- Function Menu
- CD Chaner Control
- HD Radio Tuner Control
- XM Satellite Radio Tuner Control
- Sirius Satellite Radio Tuner Control
- iPod
- AUX Input
- Messages
- Troubleshooting
- Specs
- Installation Manual
- Warranty
Various
Settings
About time alignment
With vehicle audio systems, the installation position of the speakers and the position of the listener
mean that the distances from the listener to the left
and
right speakers are almost always different.
These differences
in
the distance from the listener
to
each speaker
in
turn means that the time taken
for the sound to reach the listener is different for each speaker. The result of this
is
that the phases
of each speaker (biases) become mismatched
and
the sound becomes unnatural, as though the
sound stage is not wide enough. The "time alignment" function corrects the time taken for the sound
waves to reach the listener
in
order to set the optimum phase for the listening position so that the
sound becomes more expansive
as
though it is being listened to
on
a sound stage.
The basic adjustment method involves measuring the actual distances to each speaker and
calculating the differences
in
distance relative to the most distant speaker
in
order
to
derive the
delay time for the sound from each speaker.
About crossover
The frequency band that
is
stored
by
audio media such as CDs is a fairly wide range from 20 Hz
to
20
kHz,
and
it is difficult for a single speaker to
be
able to play back all frequencies
in
such a wide
range.
Because of this, several speakers can be used, with different frequency bands (such as treble,
medium and bass) allotted to each speaker
so
that wide frequency ranges
can
be
played back. The
"Crossover" function is used to allot the frequency ranges that are to
be
played back
by
each
speaker
in
accordance
to
the installed speaker units
and
the layout of the speakers,
in
order to
obtain the maximum level of performance from the speakers and
to
provide the most stable
frequency characteristics.
The crossover function includes a high-pass filter (HPF) for playing back treble sounds,
and
a low-
pass filter (LPF) for playing back bass sounds.
In
addition, the
HPF
and
LPF
are used
in
combination
in
order to play back sounds
in
the mid range.
68
-3dB
-3dB