Alpine CDE-9881 owner manual Setting the Treble Control, Adjusting the High Pass Filter

Setting the Treble Control

You can change the Treble Frequency emphasis to create your own tonal preference.

1 Press A.SEL repeatedly to select the TREBLE mode.

BASS TREBLE HPF BASS

Setting the Treble Center Frequency

2-1 Press BAND to select the desired treble center frequency.

10.0kHz 12.5kHz 15.0kHz 17.5kHz 10.0kHz

Emphasizes the displayed treble frequency ranges.

Setting the Treble Level

2-2*2Turn the Rotary encoder to select the desired treble level (–7~+7).

You can emphasize the treble level.

3 Press and hold /ESC for at least 2 seconds to return to normal mode.

•If no operation is performed for 15 seconds, the unit will return to normal mode automatically.

•The treble level settings will be individually memorized for each source (FM, AM, CD, etc.) until the setting is changed. The Treble frequency settings adjusted for one source are effective for all other sources (FM, AM, CD, etc.).

•The function is inoperable when DEFEAT is set to ON.

*2 The adjustment can also be made by pressing Rotary encoder. Refer to “Adjusting Bass/Treble/Balance (Between Left and Right)/Fader (Between Front and Rear)/Defeat” (page 12).

Adjusting the High Pass Filter

The High Pass Filter on this unit can be adjusted to suit your personal taste.

1 Press A.SEL repeatedly to select the HPF mode.

BASS TREBLE HPF BASS

2 Turn the Rotary encoder to select the desired HPF frequency.

OFF 80Hz 120Hz 160Hz

All frequencies above the selected cutoff are output.

3 Press and hold /ESC for at least 2 seconds to return to normal mode.

•If no operation is performed for 15 seconds, the unit will return to normal mode automatically.

•The Bass and Treble controls effectiveness in modifying the sound, depends on their settings and where the HPF is set.

•The function is inoperable when DEFEAT is set to ON.

Turning Loudness On/Off

Loudness introduces a special low- and high-frequency emphasis at low listening levels. This compensates for the ear’s decreased sensitivity to bass and treble sound.

Press and hold Rotary encoder (LOUD) for at least 2 seconds to activate or deactivate the loudness mode.

•The function is inoperable when DEFEAT is set to ON.

13-EN