Blaupunkt ACAPULCO RDM 169 - Manual (Page 26)

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Assistance in setting your equalizer
Start to make your settings in the mid-range/treble and end it with the bass range.
Frequency range Sound impression/problem What to do Notes
Bass reproduction too weak
Unclear bass
Playback reverberates
Unpleasant pressure on the
ears
Sound appears to be in the
foreground, very aggressive,
no stereo effect
Lifeless reproduction
Lack of transparency
Instruments do not sparkle
Boost the basses with the
“LOW EQ” filter
Frequency: 50 to 100 Hz
Level: +4 to +6 dB
Reduce the lower mid-range
with the “LOW EQ” filter
Frequency: 125 to 400 Hz
Level: approximately –4 dB
Reduce the mid-range with
“HIGH EQ” filter
Frequency: 1000 to 2500 Hz
Level: -4 to –6 dB
Boost treble range with
“HIGH EQ” filter
Frequency: approximately
10 kHz
Level: +2 to +4 dB
Avoid distortion. Boost the
level carefully if the speaker
diameter is too small
The tone may become too
lean and aggressive.
Pay attention to the under-
lying tone of the music.
Playback should not be too
quiet.
Tone too powerless
Avoid a piercing type of tone
Strong hissing sound un-
pleasant
Bass
30 - 100 Hz
Lower mid-range
100 - 400 Hz
Mid-range sound
400 - 4.000 Hz
Treble
4.000 - 20.000 Hz