Blaupunkt RD 148 Assistance in setting your equaliser, Lower mid-range, Mid-range sound, Treble

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Assistance in setting your equaliser

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
Bass
30 – 100 Hz	Bass reproduction too weak	Boost the basses with
		the “LOW EQ” filter
		Frequency: 50 to 100 Hz
		Level: +4 to +6 dB

Lower mid-range
100 – 400 Hz	Unclear bass	Reduce the lower mid-range
	Playback reverberates	with the “LOW EQ” filter
	Unpleasant pressure	Frequency: 125 to 400 Hz
	on the ears	Level: approx. -4 dB

Mid-range sound
400 – 4 000 Hz	Sound appears to be too	Reduce the mid-range with
	much in the foreground,	“HIGH EQ” filter
	very aggressive, no stereo effect	Frequency: 1 000 to 2 500 Hz
		Level: -4 to -6 dB

Treble
4 000 – 20 000 Hz	Lifeless reproduction	Boost treble range with
	Lack of transparency	“HIGH EQ” filter
	Instruments do not sparkle	Frequency: approx. 10 kHz
		Level: +2 to +4 dB

Notes

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 underlying tone of the music

Playback should not be too quiet.

Tone too powerless.

Avoid a piercing type of tone. Strong hissing sound unpleas- ant.

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Contents Modena RD Page Contents Quick reference AUD a DSC Mode @ PTY? Insert KeyCard DisplayFlashing KeyCard tongue BNDII Pause 3, 4, 5, 6 preset buttons Radio operationRPT Repeat MIXSetting the Balance left/right and the fader front/rear Adjusts the treble and bass frequen- ciesSwitching AUD off AUDTraffic safety What you need to know Installation AccessoriesImportant notes Telephone muteOperating the unit KeyCard theft protection systemRemoving the KeyCard Short Additional Memory S.A.M Displaying the radio pass dataTurn On Message T.O.M Optical indication for extra theft protectionREG regional programme AF Alternative frequencyAutomatic tuning Station tuningManual tuning with Selecting a wavebandScanning stored stations with Preset Scan Switching between the memory banks FMTo start Preset Scan Storing stationsAdjusting the bandwidth FM Selecting the seek tuning sensi- tivitySwitching from stereo to mono Changing the scan timeNews Programme typeWeather Finance Scanning stations with PTY Scan Storing programme typesPTY priority Traffic announcement priority on/off Traffic programme station reception with RDS-EONSwitching the warning beep off Automatic seek tuning startCD operation Deleting CD names with DSC Update Selecting the display modeEntering CD names To stop the Scan function Switching DCF 77 on/off Setting the clock Clock AutomaticallyDisplaying the clock Correcting the clock after the power has been disconnectedDeactivating the hour correction function Setting recommendations on the Internet Setting the equaliserFrequency range Sound impression / Problem What to do Bass Assistance in setting your equaliserLower mid-range Mid-range soundLish DSC programmingSTEREO/MONO Learn KC To train a second Key- CardOverview of the DSC factory settings Amplifier SpecificationsTuner CD playerBosch Gruppe