Alpine iDA-305 Setting the Filter type, Setting the Time Correction Unit, Sound Field Adjustment

Models: iDA-305

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Setting the Filter type

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 Setting the Time Correction Unit EQ 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 Sound Field Adjustment /ENTER.

2 Rotate the Double Action encoder to select the Band, and then press 31-EN /ENTER.

If a band is selected, each band adjustment screen is

Manual background Bandwidth Adjustment (Q)

Adjustable bandwidth: 1, 1.5, 3

Manual background 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 Manual background EQ 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 Manual background/ENTER.

2 Rotate the Double Action encoder to select the Band, and then press Manual background/ENTER.

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 Manual background/ENTER.

The level is selected, and the frequency selection mode 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.

activated.

Frequency

Level

 

 

 

 

 

 

 

 

 

 

 

Frequency

 

 

 

 

 

 

 

 

 

Level

 

 

Bandwidth

 

 

 

 

 

 

 

4 If Manual background/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.

Manual background Frequency Adjustment (F0)

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)

4 Rotate the Double Action encoder to select the Frequency, and then press Manual background/ENTER.

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.

31-EN

Page 33
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Alpine iDA-305 owner manual Setting the Filter type, Setting the Time Correction Unit, Sound Field Adjustment, 31-EN