Alpine iXA-W407 owner manual Setting of Dolby Digital, Speaker Setup, 30-EN

Setting of Dolby Digital

Setting item: Multi CH Setup

Adjusting the acoustic image (BI-Phantom)

In most installations, the center speaker must be placed directly between the front passenger and driver. Using this function, the center channel information is distributed to the left and right speakers. This creates an acoustic image simulating a center speaker directly in front of each listener. Adjusting the center width in PL II MUSIC (see “Using the Pro Logic II Mode” on page 27), makes this function ineffective.

•Avoid stopping, pausing, switching the disc, cueing, fast-forwarding or switching the audio channel of this unit while making this adjustment. The setting is canceled if the Decode mode is switched.

Touch [ ] or [ ] of BI-Phantom to adjust the level.

The level can be adjusted within the range of -5 to +5. The higher the level, the more the position of the center speaker is shifted to the sides.

The BI-Phantom function is turned off by touching [OFF].

•This adjustment is effective when the setting of the center speaker to SMALL or LARGE in the speaker setup settings.

•This adjustment is ineffective when the speaker is set Center to OFF in “Setting the Speakers” (page 29).

Mixing bass sound to the rear channel (Rear MIX)

This function mixes the front channel audio signals to the audio signals output from the rear speakers, improving the sound in the vehicle’s rear seat.

•Avoid stopping, pausing, switching the disc, cueing, fast-forwarding or switching the audio channel of this unit while making this adjustment. The setting is canceled if the Decode mode is switched.

Touch [ ] or [ ] of Rear MIX to adjust the level.

The level can adjusted in five steps: -6, -3, 0, +3 and +6. The higher the level, the more bass is output from the rear speakers. (The effect differs according to the software (DVD, etc.).)

The Rear MIX function is turned off by touching [OFF].

•This adjustment is ineffective when the rear speaker setup setting is set to “OFF”.

•For linear PCM signals, the voice is output from the rear speaker regardless of the REAR FILL and Rear MIX setting.

Achieving powerful high volume sound (Listening Mode)

With Dolby Digital, the dynamic range is compressed so that powerful sound can be achieved at regular volume levels. This compression can be canceled to achieve an energetic sound with even greater power, like the sound in a movie theater. This function works only in the Dolby Digital mode.

Touch [ ] or [ ] of Listening Mode to select STD or MAX.

STD: For powerful sound at regular volume levels

MAX.: For powerful sound at high volumes

•Keep the volume to a level at which sounds outside the vehicle can still be heard.

Adjusting the speaker levels (Output Level)

The test tones help to make the volume adjustments of the different speakers. When levels are equal, a strong sense of presence can be heard from the different speakers at the listening position.

•Avoid stopping, pausing, switching the disc, cueing, fast-forwarding or switching the audio channel of this unit while making this adjustment. The setting is canceled if the decode mode is switched.

1Touch [ON] of Output Level.

Test tone output is repeated for each of the different speaker channels. They will be repeated in the order shown below.

If no operation is performed for 2 seconds, the channel switches to the next channel.

Left Center Right Right Surround Left Surround Left

2While the test tone is being produced from the speakers, touch [ ] or [ ] of Output Level balance the output from all the speakers.

•The adjustment range for the different speakers is –10 dB - +10 dB.

•Adjust based on the front speakers.

3Touch [ON] again to turn OFF.

•If a speaker is set to off mode, that speaker’s level adjustment cannot be made. Refer to “Speaker Setup” (page 30).

Speaker Setup

The PXA-H700 or PXA-H701 can be set according to the playable frequency range of your speakers.

Check the playable frequency range of the speakers (not including the subwoofer) before performing this operation to verify whether the speakers can play low frequencies (of about 80 Hz or less).

•Avoid stopping, pausing, switching the disc, cueing, fast-forwarding or switching the audio channel of this unit while making this adjustment. The setting is canceled if Decode mode is switched.

Setting item: Speaker Setup

Select the speaker characteristic by touching [ ], [ ] of the desired speaker setting.

OFF*1: When no speaker is connected.

SMALL: When a speaker that cannot play low frequencies (80 Hz or less) is connected.

LARGE*2: When a speaker that can play low frequencies (80 Hz or less) is connected.

*1 It is not possible to set the front speakers to “OFF”.

*2 If the front speakers are set to “SMALL”, the rear and center speakers cannot be set to “LARGE”.

•The subwoofer can be set only to ON/OFF.

•If the center speaker is turned “OFF”, the center channel’s audio signals are added to the audio signals output from the front speakers.

•If you set the speaker response to “OFF”, also set the speaker setting to “OFF” (page 30).

•Perform the setup for all the speakers (“Front”, “Center” ,“Rear” and “Subwoofer”). If not, the sound may not be balanced.

•When center is set to “OFF”, the setting is ineffective even if center is set with this function.

•Through changing the settings on each speaker, a change in the output of the other speakers may occur due to the setting requirements.

•When using the Pro Logic II, if the rear speaker is set to “LARGE”, then there will be no output from the subwoofer.

30-EN