Blaupunkt Dallas RMD 169 - Manual (Page 29)

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Equalizer setting
Tips on adjusting the equalizer
Begin adjustment with the mid-range/treble and complete it with the bass range.
Measure
Increase the bass with
Filter: “LOW EQ”
Frequency: 50 to 100 Hz
Level: +4 to +6 dB
Reduce the lower mid-frequen-
cies with Filter: “LOW EQ”
Frequency: 125 to 400 Hz
Level: Approx. -4 dB
Reduce the mid-frequencies
with Filter: “HIGH EQ”
Frequency: 1 000 to 2 500 Hz
Level: -4 to -6 dB
Increase the treble range with
Filter: “HIGH EQ”
Frequency: Approx. 10 kHz
Level: +2 to +4 dB
Note
Avoid distortion.
Raise the level cautiously if
the loudspeaker diameter is
too small.
The tonal response may be-
come too thin and aggressive.
Pay attention to the fundamen-
tal tone range of the music.
Reproduction must not be-
come too faint.
Tonal response too weak.
Avoid a sharp tonal response.
Loud hissing impairs the quali-
ty.
Tonal effect/problem
Bass response too weak
Bass not clean
Booming
Unpleasant pressure on the ears
Sound lacks depth,
aggressive, no stereo effect
Response is dull
Clarity lacking
Instruments lack brilliance
Frequency ranges
Bass range
30 to 100 Hz
Lower mid-range
100 to 400 Hz
Mid-range
400 to 4 000 Hz
Treble
4 000 to 20 000 Hz