Example of Bass Focus Setting

1After 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.

1.5ms1.5ms

∗

2After 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.

Time Correction

Setting item: TIME CORRECTION

Setting contents: TIME DN/UP/FRONT-LEFT/FRONT-RIGHT/ REAR-LEFT/REAR-RIGHT

Before performing the following procedures, refer to “About the Time Correction” (page 22).

Selecting the speaker:

Select the speaker among 3 (FRONT-LEFT) through

6(REAR-RIGHT).

Adjusting the time correction value:

Press 1 (TIME ;DN) or 2 (TIME UP:) to adjust the time correction value (0.0 to 9.9).

Adjusting the Built-in Crossover

Setting item: CROSSOVER

Setting contents: LPF DN / UP / HPF DN / UP

The High and Low Pass Filters on this unit can be adjusted to suit your personal taste.

LPF (Setting the Low Pass Filter):

Press 1 (LPF ;DN) or 2 (LPF UP:) to adjust LPF.

FLAT (OFF) ↔ 80Hz ↔ 120Hz ↔ 160Hz

Outputs all frequencies lower than that selected according to your preference.

3.0ms

1.5ms 1.5ms

1.5ms

1.5ms

∗

(Only available when using the subwoofer output from this unit.)

•When the subwoofer output of this unit is turned OFF, LPF and phase are deactivated.

HPF (Setting the High Pass Filter):

Press 3 (HPF ;DN) or 4 (HPF UP:) to adjust HPF.

FLAT (OFF) ↔ 80Hz ↔ 120Hz ↔ 160Hz

Outputs all frequencies higher than that selected according to your preference.

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.

•If HPF, LPF, bass control and treble control are all set to ON, depending on the bass control and treble control settings, you may not be able to reinforce the sound effect.

•Except when the HPF and LPF is turned OFF, the subwoofer is in monaural mode.

Subwoofer On and Off

1 Press SOURCE/POWER.

The main menu is displayed.

2 Press 4 (A.PROC).

The A.PROC (Audio processor) list screen is displayed.

3 Turn the Rotary encoder to select “SUBWOOFER.”

4 Press the Function button to select your desired setting.

OFF:

Subwoofer output is off.

0°:

Subwoofer output is on, and the phase is 0°.

180°:

Subwoofer output is on, and the phase is 180°.

23-EN

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Alpine IVA-D900 owner manual Subwoofer On and Off, Time Correction, Adjusting the Built-in Crossover, 23-EN
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IVA-D900 specifications

The Alpine IVA-D900 is a sophisticated multimedia receiver that seamlessly blends advanced technology with user-friendly features, designed to elevate your in-car entertainment experience. With a sleek and stylish design, this unit is not only visually appealing but also packed with functionality tailored for modern drivers.

One of the standout features of the IVA-D900 is its large 7-inch motorized touchscreen display. This high-resolution LCD screen provides vibrant visuals, making navigation through menus and multimedia content intuitive and enjoyable. The motorized aspect not only saves space when not in use but also adds a touch of modern sophistication to your vehicle's interior.

Connectivity is a key component of the IVA-D900, as it comes equipped with various options, including Bluetooth technology. This allows for hands-free calling and audio streaming, ensuring you can stay connected without compromising safety. Additionally, the unit features USB and aux inputs, enabling you to easily connect your smartphone or external devices.

The IVA-D900 is compatible with a range of digital media formats, offering support for CDs, DVDs, MP3s, and WMAs. This flexibility means that whether you prefer to listen to your favorite playlists or enjoy a movie during long trips, the receiver can cater to your multimedia needs. The integrated DVD player ensures that passengers can enjoy entertainment while on the road.

To enhance the audio experience, the Alpine IVA-D900 features a robust equalizer and sound customization options. Users can adjust bass, treble, and balance to suit their audio preferences. Furthermore, it is compatible with advanced audio formats, ensuring that your music sounds crisp and clear, no matter the genre.

Safety is also a priority with the IVA-D900, as it includes support for rear-view cameras, providing an added layer of security while reversing. The system can integrate with various navigation options, offering turn-by-turn directions that are essential for long-distance travel or exploring new areas.

In summary, the Alpine IVA-D900 is an exceptional multimedia receiver that combines cutting-edge technology with ease of use. Its large touchscreen, robust connectivity options, and powerful audio features make it a prime choice for anyone looking to upgrade their in-car entertainment system. With safety features and multimedia versatility, the IVA-D900 is not just a receiver; it's a gateway to an enhanced driving experience.
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