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 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 /ENTER.

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

If a band is selected, each band adjustment screen is

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 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 /ENTER.

2 Rotate the Double Action encoder to select the Band, and then press /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 /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 /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 (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 /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

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

The Alpine iDA-305 is a cutting-edge car audio receiver designed to enhance your in-car entertainment experience. It embodies a sleek design, combining modern aesthetics with powerful technology, making it an ideal choice for avid music lovers and tech enthusiasts alike.

One of the standout features of the iDA-305 is its advanced digital media receiver abilities. Unlike traditional head units, the iDA-305 does not include a CD player, which allows for a compact design, reducing bulk while focusing on comprehensive connectivity options. Users can enjoy their favorite music through various sources, including USB, auxiliary input, and Bluetooth, making it compatible with numerous devices such as smartphones and tablets.

Bluetooth technology is one of the integral components of the iDA-305. It facilitates hands-free calling, allowing drivers to stay connected without losing focus on the road. Additionally, the dual Bluetooth feature enables simultaneous connections to two devices, allowing you to switch between your phone for calls and another for music seamlessly.

The iDA-305 supports high-resolution audio playback, ensuring that your listening experience is nothing short of exceptional. It is compatible with various audio formats, including MP3, AAC, and WMA, giving users the flexibility to enjoy their music in different file types without compromising quality.

The device boasts an intuitive user interface, featuring a vibrant display that can be adjusted for brightness based on ambient lighting, ensuring readability at all times. The responsive controls allow for easy navigation through your music library and settings, making it user-friendly, even while driving.

Sound customization is easily achievable with the Alpine iDA-305. It offers built-in equalizer settings, allowing users to tailor their audio experience according to their preferences. The digital time correction and crossover features enhance the sound quality, providing a more immersive listening experience.

Furthermore, the iDA-305 is designed to integrate seamlessly with various vehicles. Its compact design means it can fit into most dashboards without modification, ensuring a clean and factory-like appearance. The receiver is compatible with steering wheel controls, providing added convenience for users who want to manage their audio without taking their hands off the wheel.

Overall, the Alpine iDA-305 is a versatile and feature-rich car audio receiver. With its focus on digital media, advanced Bluetooth capabilities, intuitive controls, and customizable sound settings, it is tailored for those who demand quality and functionality in their in-car audio systems.
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