18
-EN
Before performing the following procedures, refer to “About the
Crossover” on page 20.
1
After selecting X-Over from the Audio Setup mode, turn
the
Rotary encoder
to select the desired channel, and
then press
ENTER
.
2
Turn the
Rotary encoder
to select the desired frequency
within the selected channel, and then press
ENTER
.
3
Repeat step 2 to adjust the slope and Level within the
selected channel.
Adjusting the Channel (Ch.)
Setting contents:
Front (HPF) / Rear (HPF) / SUBW (LPF)
Selecting the Cut-Off Frequency (Freq.)
Setting contents:
20 / 25 / 31.5 / 40 / 50 / 63 / 80 (Initial setting) / 100 / 125 /
160 / 200 (Hz)
Adjusting the Slope
Setting contents:
Flat (Initial setting) / 6 / 12 / 18 / 24 dB/oct.
Adjusting the Level (Lev.)
Setting contents:
−12 to 0 (dB) (Initial setting: 0)
The Parametric EQ/T.Correction and X-Over settings can be stored in
the preset memory.
1
The Parametric EQ/T.Correction/X-OVER settings can be
stored in any one of the
preset buttons(1 through 6)
.
After completing any adjustment for Parametric EQ/
T.Correction/X-OVER (e.g. Band), press and hold the
desired preset button for at least 2 seconds.
2
Turn the
Rotary encoder
to select Protect YES/NO, and
then press
ENTER
to store the adjusted contents.
Protect NO
Protect YES (Initial setting)
Notes
• If Protect YES is selected, the adjusted contents are protected and stored
into the preset buttons. When you want to store the parameter into a
protected preset button, “Replace NO/YES” can be selected.
If Protect NO is selected, the preset is stored.
• While perform this operation, all adjusted contents of Parametric EQ/
T.Correction and X-Over will be stored in the preset buttons.
• The stored contents are not deleted even when resetting the unit or
disconnecting the battery.
• The stored contents can be recalled by performing operation (refer to
“Recalling the Stored Parametric EQ/T.Correction/X-Over Settings” on
page 18).
The stored Parametric EQ/T.Correction and X-Over settings are stored
in the preset memory.
1
After selecting any item of the Parametric EQ/
T.Correction/X-Over mode (e.g. Band), press any one of
the
preset buttons (1 through 6)
that has your desired
characteristic in memory to recall the stored settings.
The adjusted contents of Parametric EQ/T.Correction/X-Over
stored into the preset button will be demonstrated.
2
Press the preset button again during the demonstration
to recall the stored settings.
About Time Correction
The distance between the listener and the speakers in a car vary widely
due to the complex speaker placement. This difference in the distances
from the speakers to the listener creates a shift in the sounds image and
frequency characteristics. This is caused by the time delay between the
sound reaching the listener’s right versus the left ear.
To correct this, this unit is able to delay the audio signal to the speakers
closest to the listener. This effectively creates a perception of increased
distance for those speakers. The listener can be placed at an equal
distance between the left and right speakers for optimum staging. The
adjustment will be made for each speaker in 3.4cm steps.
Listening Position example as follows:
Adjust the time correction level of the front left speaker to a high value
and the rear right to zero or a low value.
The sound is not balanced because the distance between the listening
position and the various speakers is different.
The difference in distance between the front left speaker and the rear
right speaker is 1.75 m (68-7/8").
Here we calculate the time correction value for the front left speaker in
the diagram on the above.
Conditions:
Farthest Speaker - listening position : 2.25 m (88-9/16")
Front left speaker - listening position : 0.5 m (19-11/16")
Calculation: L = 2.25 m - 0.5 m = 1.75 m (68-7/8")
Time correction = 1.75 ÷ 343
*1
× 1000 = 5.1 (ms)
*1
Speed of sound: 343 m/s (765 mph) at 20°C
Adjusting the Crossover Settings (X-Over)
Storing the Parametric EQ/T.Correction/
X-Over Settings
Recalling the Stored Parametric EQ/
T.Correction/X-Over Settings
Example 1: Front Left Seat
5.1ms
2.25m
0.5m
00ALPINE.book Page 18 Friday, January 11, 2013 10:01 AM
