Harman Kardon TD4600 - Page 8

SETTING
RECORDING
CIRCUITRY
Meter Weighting
The optimum input level for a recording
depends on the high frequency content of
the source material. Experienced users will
adjust levels accordingly. Meter weighting
simplifies level setting by automatically
adjusting for the prevalence of high
frequency sound.
To use Meter Weighting, press in the Meter
Weighting button, then set the input level
for occasional peak readings at +3dB.
NOTE: After setting the input level, turn
Meter weighting off. Also, make sure it is
off before setting Bias Fine Trim or Record
Calibration.
Dolby Noise Reduction
The use of Dolby Noise Reduction
circuitry dramatically improves the
sound quality of recordings by reducing
background hiss. The TD4500
incorporates both Dolby B NR and
Dolby C NR circuitry. TD4600 includes
Dolby B NR, Dolby C NR and Dolby S
NR circuitry.
When recording, set Dolby NR to S, C, B
or Off to match the capabilities of the
equipment on which your tape will be
played. In the event tapes will be played
on several devices, having different
Dolby NR capabilities, observe the
following:
mM Tapes recorded in Dolby NR (any
format) do not play satisfactorily on
devices without Dolby NR.
M Tapes recorded in Dolby C NR do
not play satisfactorily on devices
equipped only with Dolby B NR.
M@ Tapes recorded in Dolby S NR may
be played in Dolby B NR. Make a
test recording to see if sound is
satisfactory. (For many listeners, the
far superior quality of S-recorded
tapes when played in Dolby S NR
more than compensates for the
slight loss of quality in Dolby B NR.)
Bias Fine Trim
Bias Fine Trim enables you to get optimal
wide band recordings by adjusting the
deck’s bias setting to the specific tape you
are using.
You locate the correct setting by making a
test recording, as follows:
1. Turn off Dolby NR, MPX Filter and
Meter Weighting.
2. Start with Bias Fine Trim knob in
center position.
3. Load the cassette you are using into
the deck and press »» to advance
part way into the tape. Press
(Stop).
4. Reset Counter to 00:00; turn Memory
on.
Press @/M§ (Record/Pause).
6. Press Bias Tone button and hold;
press » to begin recording. NOTE:
Left and right meter levels will be
equal.
7. After approximately 10 seconds,
release Bias Tone button, and press
(Stop).
8. Press «; tape will rewind to
approximately 00:00.
9. Again press and hold Bias Tone
button; press » (Play).