Alpine dva-9965r User Manual
47
-EN
ALPINE DVA-9965R 68-02065Z31-A (EN)
5
Select the desired channel by pressing BAND.
• The speakers display differs, depending on the connected speakers.
6
Touch the GlideTouch bar, and select the desired
cut-off frequency (Crossover Point) by sliding it to
the left or right, then press the GlideTouch bar.
cut-off frequency (Crossover Point) by sliding it to
the left or right, then press the GlideTouch bar.
7
Press SOURCE/POWER to adjust the slope.
8
Turn the Rotary encoder to adjust the output
level.
level.
9
To adjust other channels, repeat steps 5 to 8.
10
When the setting is complete, press and hold
MENU for at least 2 seconds.
MENU for at least 2 seconds.
• When the speaker is set to the “OFF” mode, the X-OVER for that
speaker cannot be set. Refer to “Setting the Speakers” (page 46).
• Check the playback frequencies of the connected speakers before
adjusting.
• In order to protect the speakers, there is no OFF setting for the
subwoofer low pass filter (the slope remains the same).
• The H.P.F. filter cannot be set to OFF (slope OFF) if Tweeter is
selected for FRONT1. Or, only the subwoofer is adjustable if
STEREO is selected for the subwoofer.
STEREO is selected for the subwoofer.
• When the setting is complete, it is recommended to store the setting
contents. For storing, refer to page 52.
Performing Time Correction Manually (TCR)/
Phase Switching
Phase Switching
Because of the particular conditions inside the vehicle, there can be
major differences in the distances between the various speakers and
the listening position. It is possible to calculate the optimum
correction values and eliminate the time error at the listening position
yourself using this function.
major differences in the distances between the various speakers and
the listening position. It is possible to calculate the optimum
correction values and eliminate the time error at the listening position
yourself using this function.
Calculating the Time Correction
1
Sit in the listening position (the driver’s seat, for
example) and measure the distance (in meters)
between your head and the various speakers.
example) and measure the distance (in meters)
between your head and the various speakers.
2
Calculate the difference in distance between the
farthest speaker and the other speakers.
farthest speaker and the other speakers.
L =
(distance of farthest speaker)
– (distance of other speakers)
– (distance of other speakers)
3
Divide the distances calculated for the different
speakers by the speed of sound (343 m/s
temperature 20°C).
speakers by the speed of sound (343 m/s
temperature 20°C).
This value is the time correction value for the various
speakers.
speakers.
Concrete examples
Calculating the time correction value for the front left speaker
on the diagram below.
on the diagram below.
Conditions:
Distance between farthest speaker and listening position:
Distance between farthest speaker and listening position:
2.25 m (88-3/4")
Distance between front left speaker and listening position:
0.5 m (20")
Calculation:
L = 2.25 m (88-3/4") – 0.5 m (20")= 1.75 m (68-3/4")
Compensation time = 1.75 ÷ 343 x 1000 = 5.1 (ms)
In other words, setting the time correction value for the front
left speaker to 5.1 (ms) sets a virtual distance matching the
distance to the farthest speaker.
left speaker to 5.1 (ms) sets a virtual distance matching the
distance to the farthest speaker.
2.25m
0.5m
5.1ms
The sound is uneven
because the distance
between the listening
position and the different
speakers is different.
The difference in the
distance between the front
left and rear right speakers
is 1.75 meters (68-3/4").
because the distance
between the listening
position and the different
speakers is different.
The difference in the
distance between the front
left and rear right speakers
is 1.75 meters (68-3/4").
Time correction eliminates
the difference between the
time required for the sound
from the different speakers
to reach the listening
position.
Setting the time correction of
the front left speaker to
5.1 ms makes it possible to
coordinate the distance from
the listening position to the
speaker.
the difference between the
time required for the sound
from the different speakers
to reach the listening
position.
Setting the time correction of
the front left speaker to
5.1 ms makes it possible to
coordinate the distance from
the listening position to the
speaker.
Inputting the Time Correction
4
Check that Defeat mode is off (page 22).
5
Press and hold MENU for at least 2 seconds.
6
Select the Time Correction (T. CORR/PHASE) mode
by sliding your finger on the GlideTouch bar to
the left or right. Press the GlideTouch bar under
the Time Correction (TCR/PHASE) mode.
by sliding your finger on the GlideTouch bar to
the left or right. Press the GlideTouch bar under
the Time Correction (TCR/PHASE) mode.
7
Select L+R or L/R by pressing and holding BAND
for at least 2 seconds.
for at least 2 seconds.
L+R: Sets the same adjustment values for the left and right
channels.
L/R: Different adjustment values can be set for the left
and right channels.
Continued