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41-EN
01GB06IVA310.fm
ALPINE IVA-D310 68-02278Z28-A (EN)
Example of Bass Focus Setting
1 After entering corrections for the front (left and right)
speakers in STEP 15, the time difference is 1.5 ms for
both front-left and front-right speakers.
2 After entering corrections for the left (front and rear)
speakers in STEP 15, the time difference becomes 3.0
ms** for the front left speaker and 1.5 ms for the left rear
speaker.
**Because the time difference was already set to 1.5 ms for the
front left speaker in STEP 1, the additional correction in STEP
15 makes the time difference of the front left speaker 3.0 ms.
Tips
* Subwoofer speaker
Delay (turn the rotary encoder) the audio signal to the front (left
and right) speakers to make the apparent position of the
subwoofer to be at the front. In doing this, the apparent position
between the front (left and right) speakers and subwoofer will
appear equal to the driver. After performing above, you can
change the positions of left and right speakers by delaying the
time.
The High and Low Pass Filters on this unit can be adjusted to suit your
personal taste.
Setting item: X-OVER
1 Touch [] of X-OVER.
The screen changes to the X-OVER screen to be
adjusted.
2 Adjust the crossover to your preference.
X-OVER (LPF) adjustment screen example
Displays the speaker to be adjusted
When adjusting HPF: FRONT/REAR
When adjusting LPF: SUBW.
Displays the selected HP or LP
Displays the cut-off frequency currently selected
Displays the slope range of currently selected HPF or
LPF
Variable range of selected cut-off frequency
Active bar: displays the position of the cut-off frequency
currently selected with an orange bar
Switching between HPF and LPF
HPF/LPF changes each time [HPF/LPF] is touched.
• Except when the HPF and LPF is turned OFF, the subwoofer is in
monaural mode.
Selecting the Cut-Off Frequency
Touch [] or [], then select the cut-off frequency
(crossover point).
Setting frequency: 80Hz, 120Hz, 160Hz
Adjusting the Slope
Touch [SLOPE], then adjust the HPF or LPF slope.
Setting slope: OFF, -12dB/oct
Adjusting Cut-off Frequency Directly
Touching the variable range of the cut-off frequency moves the cut-off
frequency to the touched position.
3 Touch [RETURN] to return to the Previous screen.
Storing the Adjusted Contents
Following operation is performed after Step 3 above.
4 Touch [MEMORY] on the BASS ENGINE screen.
5 Within 5 seconds, touch any one of preset buttons
[P.SET 1] through [P.SET 6].
The adjusted contents will be stored on the preset
number you touch.
• The stored contents on the P.SET number remain undeleted despite a
reset operation or disconnection of the battery power cord.
• Adjusted/set contents of each setting item in Bass Engine can be
stored in the preset buttons (1 through 6).
Adjustment and Storing/Recalling of the
Built-in Crossover
1.5ms
1.5ms
∗
∗
1.5ms
1.5ms
3.0ms
1.5ms
1.5ms
HPF: Outputs all frequencies higher than that selected
according to your preference.
LPF: Outputs all frequencies lower than that selected
according to your preference.
(Only available when using the subwoofer output from
this unit.)
01GB00IVAD310.book Page 41 Wednesday, December 1, 2004 4:20 AM