Teac A-450 - Page 2

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Tape Deck REC Out
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Stereo Amplifier
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Record Player
Tuner
Connections
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Recording Procedure
Playback Procedure
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IN/OUTlDIN) or REC/PB
Thanks for buying a TEAC.
Your A-450 is a top quality deck of proven excellence and durability. It was built with all the
patience and skill that has made TEAC the leader in the field of tape recording for over 20
years.
If this is your first stereo cassette deck we suggest that you read through this Owner's Manual
carefully to familiarize yourself with all the capabilities of this fine deck before you begin using
it. If you are an experienced recordist just stepping up to the superb A-450, (as many of our
customers are) you will probably find the A-450 easy to operate and understand. It has been
"human engineered" for you.
Good luck and good recordingl
2. Set the EQ switch to match the type of
tape you are using according to the chart
on page 5. The BIAS switch has no
effect during playback.
1. Insert the recorded cassette in the deck
as shown, with the side of the cassette
you want to playback facing up.
Playback: Connect OUTPUT jacks to the
tape monitoring or AUX jacks on your
receiver/amplifier. If DIN cord is used, do
NOT use pincords simultaneously for deck
might receive positive feedback to the point
of oscillation.
CAUTION: Do not place the A-450 on top of a television set or other device that may generate
hum or radiated noise or excessive heat or magnetism.
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achieved through the LINE IN jacks. These
signals are generally of a higher level and
tend to mask the noise. In some instances
the use of the DIN cord may result in
slightly increased hum and/or reduced high
frequency response. We recommend that
you use the individual cables supplied with
the unit, connected to the LINE IN and
OUTPUT jacks as shown in the diagram.
End-Stop Function
During any tape movement, when the
cassette tape reaches the end of tape, the
deck will stop and the selected key or keys
will be automatically released after a short
delay of 3-6 seconds. If the tape is already
at the end of tape and any tape movement
operation is selected that would move the
tape toward the end-stop, the end stop
function will continually release the selected
key after the 3 to 6 second delay.
The Pause key, if selected, will not be
released.
MIC/LINE Mixing
You can record both MIC and LINE inputs
at the same time. This feature allows you to
add your voice commentary to music as it is
being recorded via the LINE jacks or to sing
along with the music. You can also mix
"live" music using microphones with pre 
recorded music fed to your A-450 via the
LINE jacks.
Use a stereo headphone connected to the
PHONES jack to monitor the MIC and
LINE inputs and adjust the appropriate
input control for the desired balance be 
tween them. Watch the VU meters and peak
level indicator to insure that the combined
inputs do not exceed 0 VU or ignite the
peak level indicator.
WARNING
TO PREVENT FIRE OR SHOCK HAZ 
ARD, DO NOT EXPOSE THIS APPLI 
ANCE TO RAIN OR MOISTURE
Noise reduction circuit made under li 
cense from Dolby Laboratories Inc. The
word "DOLBY" and the Double-D
symbol are trademarks of Dolby Labora 
tories Inc.
1. Insert the cassette as shown in the
playback prodcedure, with the side you
wish to record facing up.
Close the cassette lid.
2. Set the BIAS and EQ switches to match
the type of tape you are using according
the chart on page 5.
3. Set the Dolby NR switch to the IN
position to Dolby-encode your tape
during recording so you can reduce
inherent tape noise during playback.
For recording without Dolby NR, set
the Dolby NR switch to OUT.
4. Set the Dolby FM/COPY switch to
OUT.
If you are recording a Dolby FM broad 
cast, set the Dolby FM/COPYswitch to
IN.
5. If you are recording a Dolby FM broad 
cast set the SOURCE switch to FM.
6. Set the OUTPUT level controls to
about position 2 or 3 on the scale.
7. Depress the PAUSE key to engage the
control. Depress and hold the REC key
and then depress the ► (play) key
until both keys remain engaged and the
REC lamp illuminates.
8. Begin the source music, i.c., tune in the
FM station or start the record player to
get an initial test recording level.
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9. Increase the MIC or LINE input level
controls until the loudest levels read
about 0 VU without igniting the peak
level indicator. See page 6 for an
explanation of the peak level indicator
and setting the proper recording level.
For MIC/LINE mixing both pairs of
inputs are adjusted to indicate below 0
VU and the inputs are balanced by
monitoring through headphones at the
PHONES jack.
10. Raise the OUTPUT level controls to a
comfortable listening level through the
headphones or stereo amplifier. Control
speaker volume level at the amplifier.
11. Re-start the source program you wish to
record, from the beginning. Push and
release the PAUSE button as the pro 
gram begins. This starts the actual re 
cording.
12. The recording may bestopped in one of
the following three ways:
End-of-tape : Automatic shut-off will
release all keys to stop the deck.
PAUSE key : Depress the PAUSE key
to eliminate all commercials, breaks in
the music, etc.
STOP key : Depress the STOP key to
completely release all selected func 
tions.
Record: Your A-450 is equipped with dual
inputs; DIN and MIC inputs are common
and should be used for low level signals
from lower impedance sources; the LINE
IN jacks are used when recording from a
tuner, amplifier or another tape decks
outputs (high impedance, perhaps 50k ohms
or more). Optimum noise reduction is
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Loading cassette tape onto the deck
1. Depress the EJECT key fully; cassette
compartment lid opens and the holder
raises up.
2. Place the cassette onto the holder with
selected side up and open end (tape
exposed) towards you.
3. Press the cassette downward until the
holder locks in place; close the lid.
4. Depress the Rewind key to reach
the beginning of the tape; Automatic
stop releases control at full rewind.
5. Push the Counter Reset button for a
"000" reading; use ► Play or ►► Fast
Forward key to locate the end of clear
leader tape, at approx. "005".
Prior to proceeding with this procedure, reduce volume level on your stereo amplifier to prevent
sudden playback sound from damaging your speakers.
3. Set the DOLBY NR switch to IN posi 
tion if the tape was recorded using
Dolby noise reduction circuitry. Set the
switch to OUT if the tape was recorded
without using Dolby noise reduction
circuitry. If this switch is mis-set during
playback the music will not sound nat 
ural, especially on the higher notes above
5 kHz.
4. Set the DOLBY FM/COPY switch to
OUT.
5. Set the OUTPUT level controls to about
the #8 position."
6. Depress the ► (play) key to begin
playback of the tape.
7. Adjust the OUTPUT level controls for
the desired listening level if using head 
phones or for a O VU reading on the VU
meters if you are using a separate stereo
amplifier and speaker system.
8. Set the controls on the stereo amplifier
or receiver (if used) to obtain the sound
loudness you desire.
' Position #8 will give a standard output level
when playing back a properly pre-recorded
tape.
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NOTE: Especially avoid using what is called
a DIN-PIN plug cord. Such cordswill give an
impedance and signal level-mismatch, re 
sulting in exceptionally weak inputs signals.
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