Alpine IVA-D300 owner manual Over Adjustment, Performing Time Correction Manually TCR, 45-EN

6 Touch [;] or [:] of the desired MX mode.

•Music source (such as radio broadcasts and CDs, excluding AM radio) level can be set.

MX CD (OFF, CD 1 to 3)

CD mode processes a large quantity of data. This data is used to reproduce the sound cleanly by making use of the data quantity.

MX COMPRESS MEDIA (OFF, CMPM 1 to 3) / MX XM (OFF, XM 1 to 3)

This corrects information that was omitted at the time of compression. This reproduces a well-balanced sound close to the original.

MX FM (OFF, FM 1 to 3)

The medium to high frequencies become more clear, and produces well balanced sound in all the bands.

MX DVD (OFF, MOVIE 1 to 2)

The dialog portion of the video is reproduced more clearly.

(DVD MUSIC)

This disk contains a large quantity of data such as music clip. MX uses this data to reproduce the sound accurately.

MX AUX 1 to 3 (OFF, MP3, MOVIE, MUSIC)

Choose the MX mode (MP3, MUSIC, or MOVIE) that corresponds to the media connected.

7 Touch [RETURN] to return to the previous screen.

•The contents of MX set here is reflected to PXA-H700 or PXA- H701.

•When OFF is selected, MX effect of each MX mode will be OFF.

•Each music source, such as radio, CD, and MP3 can have its own MX setting.

•MX mode does not function when MX is ON for AM radio.

•MX COMPRESS MEDIA is applied for MP3/WMA, MMD.

X-OVER Adjustment

1 Check that Defeat mode is off.

2 Touch [SYS.] on the main source screen.

The SYSTEM selection screen appears.

3 Touch [i-Personalize].

The i-Personalize screen will appear.

4 Touch [] of A.PROCESSOR.

The A.PROC list screen appears.

5 Touch [;] or [:] of X-OVER to select L/R or L+R.

L/R: Different adjustment values can be set for the left and right channels.

L+R: Sets the same adjustment values for the left and right channels.

6 Touch [] of X-OVER.

The X-OVER adjustment screen appears.

7 Touch a desired adjustment mode.

FREQ: Adjust the H.P.F. or L.P.F. cutoff frequency. The adjustable bands differ according to the channel (speaker).

SLOPE: Adjust the H.P.F. or L.P.F. slope.

LEVEL: Adjust the H.P.F. or L.P.F. level.

8 Touch [;] or [:] of the speaker to adjust its channel.

9 When adjusting another channel, repeat steps 7 and 8 above.

10 Touch [RETURN] to return to the previous screen.

•When the speaker is set to the “OFF” mode, the X-OVER for that speaker cannot be set. Refer to “Setting the Speakers” (page 44).

•Check the playback frequencies of the connected speakers before adjusting.

•In order to protect the speakers, there is no OFF setting for the subwoofer low pass filter (the slope remains the same).

•Even if Tweeter is selected for FRONT 1, the filter OFF (slope OFF) of the H.P.F. can be set. If the slope is set to OFF, speakers may be damaged. Take care with this setting.

Performing Time Correction Manually (TCR)

Because of the particular conditions inside the vehicle, there can be major differences in the distances between the various speakers and the listening position. It is possible to calculate the optimum correction values and eliminate the time error at the listening position yourself using this function.

1 Check that Defeat mode is off.

2 Sit in the listening position (the driver’s seat, for example) and measure the distance (in meters) between your head and the various speakers.

3 Calculate the difference in distance between the farthest speaker and the other speakers.

L = (distance of farthest speaker)

– (distance of other speakers)

4 Divide the distances calculated for the different speakers by the speed of sound (343 m/s temperature 20°C).

This value is the time correction value for the various speakers.

Concrete examples

Calculating the time correction value for the front left speaker on the diagram below.

Conditions:

Distance between farthest speaker and listening position: 2.25 m (88-3/4")

Distance between front left speaker and listening position:

0.5m (20")

Calculation:

L = 2.25 m (88-3/4") – 0.5 m (20")= 1.75 m (68-3/4") Compensation time = 1.75 ÷ 343 x 1000 = 5.1 (ms)

In other words, setting the time correction value for the front left speaker to 5.1 (ms) sets a virtual distance matching the distance to the farthest speaker.

Continued

45-EN