TANDBERG TR-2075, Руководство по эксплуатации

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11
Filters
LOW FILT
Rumble from a record player, acoustic feedback between
speakers and a pick-up, or excessive bass resonance in a
speaker or a room can all be controlled by means of the
LOW FILT. The graph shows the effect of the control
(-12 dB/octave).
HIGH FILT 1
If the program is accompanied by strong hiss or scratch noise
from old and worn records or noise from a tape recorder or
from the receiver, depress the HIGH FILT 1 button to obtain
moderate attenuation of the high frequencies. The graph
shows the effect of the control (—12 dB/octave).
HIGH FILT 2
Tins control can be used for the same purpose as the
HIGH FILT 1 control, it simply gives less attenuation
(—6 dB/octave) as may be seen in the graph.
HIGH FILL 1 and HIGH FILT 2
Depressing both these buttons simultaneously gives the
heaviest attenuation of all at the high frequencies as may be
seen in the graph (— 1 8 dB/ octave).
LOUDNESS
At low volume the ear is less sensitive to high and low tones.
As a result music at low volume from speakers tends to lack
high and low tones and sounds as if it has too much "body"
in the middle tone range. To compensate for this effect,
depress the LOUDNESS button whereby the bass and
t r e bl e will be boosted according to the setting of the
VOLUME control. The graph shows how this boost
increases as the volume is turned down.