Setting The Filter Type; Setting The Time Correction Unit; Sound Field Adjustment; Adjusting The Parametric Equalizer Curve - Alpine iDA-305 Owner's Manual

Setting the Filter type

Normal (Initial setting) / Individual
If you adjust X-OVER, you can set the channel L and R at the same
level, or independently.
Normal (L=R): Left and right speakers are adjusted
equally.
Individual (L/R): Left and right speakers are individually
adjusted.

Setting the Time Correction Unit

cm (Initial setting) / inch
You can change the unit, (cm or inch) of time correction.

Sound Field Adjustment

The setting of Parametric EQ/Graphic EQ Adjustment, Time Correction
and X-Over can be adjusted in this mode.

Adjusting the Parametric Equalizer Curve

Sound Field Adjustment
You can modify the Equalizer settings to create a response curve more
appealing to your personal taste. To adjust the Parametric Equalizer
Curve, set the EQ mode to Parametric EQ. For details, refer to "Setting
EQ mode" (page 30).
1
Rotate the Double Action encoder to select "EQ
Adjustment" in the Sound Field adjustment mode,
and then press /ENTER.
2
Rotate the Double Action encoder to select the
Band, and then press
If a band is selected, each band adjustment screen is
displayed.
Band1 / Band2 / Band3 / Band4 / Band5
3
Rotate the Double Action encoder to adjust the
frequency/band width/level.
The item currently being adjusted lights up.
Frequency
Bandwidth
4
If /ENTER is pressed, the adjusted value is set,
and operation moves to the next item to be adjusted.
5
When the selected band settings are complete,
press BAND.
The next band adjustment screen is displayed.
6
Repeat steps 3 to 5, and adjust each band.
Frequency Adjustment (F
Adjustable frequency bands:
20 Hz to 20 kHz (in 1/3 octave steps)
Band1: 20 Hz~80 Hz (63 Hz)
Band2: 50 Hz~200 Hz (150 Hz)
Band3: 125 Hz~3.2 kHz (400 Hz)
Band4: 315 Hz~8 kHz (1 kHz)
Band5: 800 Hz~20 kHz (2.5 kHz)
EQ Adjustment
/ENTER.
Level
)
0
Bandwidth Adjustment (Q)
Adjustable bandwidth: 1, 1.5, 3
Level Adjustment (Gain)
Adjustable level: -6 to +6 dB
• The frequencies of adjacent bands cannot be adjusted within 4 steps.
• While adjusting the Parametric EQ, you should consider the
frequency response of the connected speakers.
• During adjustment, if you press in the outer ring and rotate the
Double Action encoder to the left or right, the band changes, and
you can adjust the adjacent band. If you press then rotate and hold
the Double Action encoder to the left or right, the band continuously
changes.
• The function is inoperable when Defeat is set to ON.

Adjusting the Graphic Equalizer Curve

Sound Field Adjustment
You can modify the equalizer settings to create a response curve more
appealing to your personal taste. To adjust the graphic equalizer curve,
set the EQ mode to Graphic EQ. For details, refer to "Setting EQ mode"
(page 30).
1
Rotate the Double Action encoder to select "EQ
Adjustment" in the Sound Field adjustment mode,
and then press /ENTER.
2
Rotate the Double Action encoder to select the
Band, and then press
If a band is selected, the screen to be adjusted is
displayed.
Band1 / Band2 / Band3 / Band4 / Band5 / Band6 / Band7
3
Rotate the Double Action encoder to adjust the
level, and then press
The level is selected, and the frequency selection mode is
activated.
Frequency
4
Rotate the Double Action encoder to select the
Frequency, and then press
The frequency is selected, and the level adjustment mode is
activated. The selected frequency is displayed in yellow.
5
When the selected band settings are complete, press
BAND.
The next band adjustment screen is displayed.
EQ Adjustment
/ENTER.
/ENTER.
Level
/ENTER.
31
-EN