4.4

Out of 3 Ratings

Owner's of the Alpine Car Stereo System cdm-9821 gave it a score of 4.4 out of 5. Here's how the scores stacked up:
  • Reliability

    4.5 out of 5
  • Durability

    4.5 out of 5
  • Maintenance

    4.5 out of 5
  • Performance

    3.67 out of 5
  • Ease of Use

    5.0 out of 5
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7-EN
Setting the Treble Control
1 Press the CENTER f button to select the Treble
setting mode.
Each press changes the modes as follows:
2-1
Setting Treble frequency:
Press g or f button to select the desired
Treble center frequency.
10kHz 12.5kHz 15kHz 17.5kHz
Emphasizes the displayed Treble frequency
ranges.
2-2
Setting Treble Level:
Turn the Rotary encoder to select the desired
Treble Level (-7~+7).
You can emphasize the treble frequency.
NOTES
If no buttons are pressed within 15 seconds, the Treble
control setting will be turned off automatically.
The settings of the Treble Level will be individually
memorized for each source (FM, AM and CD) until the
setting is changed.
The Treble frequency settings
adjusted for one source are effective for all other
sources (FM, AM and CD).
You can change the Treble Frequency emphasis
to create your own tonal preference.
Setting the Bass Type
This function allows for 3 different Bass type
settings. Select the one that appeals to you the
most.
1 Press and hold the CENTER f button for at least
2 seconds to set the Bass Type.
2 Select the desired type (1 through 3) by pressing
the g or f button within 15 seconds.
Type 1 will sound best if you have a subwoofer
in your system. Use Type 2 or 3 if you are using
small diameter speakers.
3 Press the CENTER f button for at least 2
seconds to return to the normal mode.
NOTES
“Bass Center Frequency” and “Bass Band Width”
previously set are replaced when selecting TYPE 1
through 3. When Bass Type is OFF, your previous
settings are restored.
Bass setting
mode
Treble setting
mode
Normal
mode