Teac 450 - Copying and Duplicating Cassettes; Copying Dolby Cassettes; Copying Open Reel to Cassette

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OPEN REEL DECK
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When lhe cassette playback system has no output volume
control, the required Dolby-level calibration must be per 
formed by means of the DOLBY FM/COPY CAL Calibration
adjustment controls.
To Copy or Duplicate Dolby-encoded Cassettes.
(Transcribing Dolby to Dolby without re-encoding)
4 . Now that the recording level adjustment has been comple
ted, wait for the program to begin.
5. Press the PAUSE Button again to release it from the
locked position and recording will start immediately.
6 -Set the DOLBY NR (Dolby NR Selector Switch) to IN
for monitoring the Dolby-decoded signal and to OUT for
monitoring the Dolby-encoded signal. Never move the
DOLBY FM/COPY switch @ during recording.
DOLBY UNIT
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TEAC 450
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Note: Prepare the open reel tape deck and separate Dolby
Noise Reduction unit as outlined in their Operating
Instructions. Place the Dolby NR switch IN with the
Dolby unit in Play mode and perform Playback Calibra 
tion as required.
2. On die 450, set the DOLBY FM/COPY (Dolby FM/Copy
selector switch) (21) OUT and the DOLBY NR (Dolby
NR selector switch) (22) IN. Insert a blank cassette.
3. Depress the PAUSE button (9) until it locks. Next, while
depressing the REC (record) Button (4). press the ►
(Play Button) (6), thus placing the 450 in the Record/
Pause mode.
4. While the 450 is in the Record/Pause mode, playback the
loudest portions of the open reel tape. On the 450, adjust
the LINE input level controls so that the VU meters
do not exceed 0 VU and the peak level indicator does not
illuminate excessively. Obtain the highest recording level
possible without exceeding these limitations. Rewind the
tape.
5. Release the PAUSE button on the 450 and begin play 
back on the open reel deck.
6. While copying, make all listening level adjustments with
the stereo amplifier ’ s output controls and the 450 OUT 
PUT controls. Do not change any level on the 450 INPUT
or the open-reel deck output.
To copy Dolby-encoded open reel tape onto
cassette with Dolby encoding
Open-reel Dolbyized tapes are sometimes recorded at a
higher signal level than cassettes. If a direct copy is attempted,
the cassette tape is liable to sound distorted because of high-
level saturation. Therefore, the open reel tape must be de 
coded through a separate Dolby Noise Reduction Unit and
then re-encoded on the 450 to preserve the desired quality.
There is no appreciable loss of sound by this method, and
the Dolby process maintains the hiss — and noise-free record 
ings very affectively.
1. Connect the Dolby Noise Reduction Unit's outputs to the
450 LINE IN terminals, either directly or through the
stereo .amplifier.
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1 .Set both the DOLBY FM/COPY (Dolby FM/Copy Selector
Switch) ® and the DOLBY NR (Dolby NR Selector
Switch) @ to IN.
2. Depress the PAUSE Button (9) until it locks. Next,
depressing the REC (Record Button) (4), press the ►
(Play Button) (6) to set the 450 to the Record mode.
3. Using the other cassette deck, play back the standard
Dolby-level tape (MTT-150 available as an option), and
adjust the output volume of the playback deck until the
pointers of the 450 ’ s VU Meters point to the Dolby
Mark ( □□ ).
4 . Play back the original Dolby-encoded tape with the other
cassette deck. When the DOLBY FM/COPY @ is set
to IN, the MIC (Microphone Input Volume Control)
@ and the LINE (Line Input Volume Control) @
have no effect on the volume adjustment.
5 . Depress the PAUSE Button (9) again to start recording.
6 - Set the DOLBY NR (Dolby NR Selector Switch) to IN to
monitor the Dolby-decoded signal and to OUT to monitor
the Dolby-encoded signal.
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OUTPUT