4 Press the TUNE button to select the desired setting.

1. BC (Setting the Bass Center Frequency):

BC 60Hz BC 70Hz BC 80Hz BC 90Hz BC 200Hz BC 150Hz BC 130Hz BC 100Hz

Emphasizes the displayed Bass frequency ranges.

2.BW (Setting the Bass Band Width): (Q-Factor)

BW WIDE1 BW WIDE2 BW WIDE3

BW WIDE4

(Narrow)

(Wide)

Changes the displayed frequency’s band width to narrow or wide.

3. TC (Setting the Treble Center Frequency):

TC 10.0kHz TC 12.5kHz TC 15.0kHz TC 17.5kHz

Emphasizes the displayed treble frequency ranges.

Default values

BC: 80 Hz

BW: WIDE1

TC: 10.0kHz

5 Press the SETUP button again to return to normal operation.

13-EN

Page 15
Image 15
Alpine CDA-7990 manual 13-EN, Default values