Velodyne Digital DrivePLUSSeries - Manual (Page 36)

e. If any dips are of higher concern than the rest of the peaks, then proceed to use Steps 14a through 14c for those, but pull
the EQ filter marker up in level.
f. Proceed cautiously with the dips, as you are very likely to find one or more that cause you to want to put multiple filters
very near each other to get “enough boost”. This will be a null, which can show very little change after applying a lot of
acoustic power at its particular frequency. It is best not to EQ these very much.
15. Now you can modify the settings for the presets if you want. The most common settings to focus on for preset adjustment are the
preset contour frequency, contour level and the Theater/Music setting. However, if you want to change the crossover frequency,
crossover slope, phase and polarity for each preset, you should do so now following the procedure outlined in Steps 8 and
Steps 10 through 13.
16. If you are using the Windows Setup program, exit Manual-EQ by clicking Save and Exit. If you are using the TV screen interface,
select Exit/Save in the upper right of the screen and then select Yes to save.
17. Stop the Sweep Tone CD.
18. If you are using the Windows Setup Program, keep it open. If you are using the TV screen interface, push 1-2-3-4-5 on the remote
and then press Select quickly after.
19. If you are using the Windows Setup Program, wait for it to reconnect to the subwoofer. If you are using the TV screen interface,
the subwoofer is already connected to the TV.
20. Play the appropriate media through the Digital Drive PLUS subwoofer for the preset you want to change. Proceed to modify contour
frequency, contour level and the Theater/Music settings.
a. For each preset, decide upon a frequency for the contour. Set the contour level to somewhere between 2.0 and 4.0 so
you can hear the change. Listen to your media and adjust the contour frequency until the contour is boosting the correct
frequencies to your taste.
b. Then adjust the contour level to your taste. These values are proportional to, but not equal to a dB.
c. While listening to the media, change the servo gain, or Theater/Music setting. A setting of 8 has the most gain and the
lowest distortion as noted previously, while 1 has the least gain. Even in the 1 setting, the Digital Drive PLUS subwoofers
have lower distortion than conventional subwoofers. Select the setting that yields the best appropriate accuracy for
your media.
21. At this point, you can adjust the subsonic filter and subsonic filter slope. Adjust them with preservation of dynamic headroom in
mind for dynamic media with little content below 20 Hz and maximum extension for media with extreme extension, but little
dynamic need. The factory default setting works well in most cases. If you are playing content that is particularly dynamic with little
sub-20 Hz content, it is wise to raise the frequency. Media with extremely low bass content but little dynamics may be better
reproduced with a lower slope.
22. Finally, adjust the volume for your new presets to match the appropriate satellites or lend the correct character to your playback.
23. Make sure you save your settings before leaving the Windows or TV screen interfaces or powering off the subwoofer using the
Save to DD+, Save, Save As…, or Save To File commands for the Windows program or Save/Exit and Yes for the TV screen
interface. If you don’t save your changes, they are lost when you exit Manual-EQ or the subwoofer turns off.
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