Akai AM-32 User manual

AKAI
STEREO INTEGRATED AMPLIFIER
AM-32
AM-92
Operator's Manual [{
“This. manual applies equally to"models AM-32 and
AM-52 except where otherwise noted:
{llustration shows mode! AM-52. <
Français
- Deutsch...... i
. Nederlands Pagina 36~47
Español: Página 48 ~59

This is the Akai
Stereo Integrated
Amplifier
Use this Akai amplifier in combination with the
other components in the Akai Pro-series and you
will have an excellent hi-fi system.
Features
@ High power dual pole DC servo power amplifier
@ SOURCE DIRECT switch (See page 9)
ө SUBSONIC filter switch (See page 9)
е MUTING switch (See page 9)
@ TAPE MONITOR switch (TAPE 1/TAPE 2 for
AM-52/See page 7)
STEREO/MONO MODE switch (AM-52/See
page 9)
A&B SPEAKER switches (See page 9)
MC cartridge capable high-gain type PHONO
equalizer amplifier (See page 9)
LOUDNESS switch (See page 9)
BASS and TREBLE tone controls (See page 9)
oo speaker protection circuit (See page
5
© Large diameter speaker terminals (See page 4)
° “a (Digital Audio Tape) deck jacks (See page
8
© Exclusive adaptor input and output jacks (See
page 8)
@ Large capacity power supply section.
ө Low-noise Dual FET coupled type phono equali-
zer and power amplifier
Table of contents
Waring у caer eae coud Gos a EA beast 1
What you should know to protect yourself ..... ee
Making the right connections................ 3--4
CONOS а агаа aE a's alow be 5
Let’senjoy the тизїс.......................... 6
ГеГзтесога... г.и.к Ыл iraia .7
Expanding Your Hi-Fi system .................. 8
The parts of the Akai Amplifier.................. 9
Problem? Let’s check ........................ 10
The speaker зузїет.......................... 10
Specifications ............................... 11
WARNING
To
prevent
fire
or
shock
hazard,
do
not
expose
this
appliance
to
rain
or
moisture.
Power requirements
Power
requirements
for
electrical
equipment
differ
from
area
to
area.
Please ensure that your machine meets the power
requirements in your area.
If in doubt, consult a qualified electrician.
120 V, 60 Hz for USA and Canada
220 V, 50 Hz for Europe except UK
240 V, 50 Hz for UK and Australia
127 V/220 V, 50/60 Hz for Saudi Arabia.
110 V/120 V/220 V/240 V, 50 Hz/60 Hz converti-
ble for other countries.
Voltage
conversion
(not
on
all
models)
This machine can be set to 110 V, 120 V, 220 V or
240
V
as
required.
Each
machine
is
preset
at
the
factory according to destination. However, if vol-
tage conversion is necessary, follow the instruc-
tions below:
1. Disconnect the power cord.
2. With a flat bladed screwdriver, rotate the selec-
tor (located on the rear panel) so that the correct’
voltage for your area is displayed.
120V 110V
VOLTAGE SELECTOR

What you should
know to protect
yourself
Watch out! You might get an
electric shock.
© Never touch the plug with wet hands.
е Always pull out by the plug and never the сога.
ө Only let a qualified professional repair ог
reassemble the Akai Amplifier. An unauthorized
person might touch the internal parts and re-
ceive a serious electric shock.
ө Never allow a child to put anything, especially
metal, into the Akai Amplifier.
Let’s protect the Akai Amplifier
too.
è Use only a household AC power source. Never
use a DC power source.
@ Make sure that the power consumption of each
component does not exceed the wattage speci-
fied on the rear panel.
© If water is spilled оп the Akai Amplifier, discon-
nect it and call your dealer.
@ Make sure that the Akai Amplifier is well ventilat-
ed and away from direct sunlight. Be careful not
to block the side ventilator of the Akai Amplifier.
ө To avoid damages to the internal circuits and
the external surface, keep away from heat
(stoves, etc.)
@ Avoid using spray type insecticide near the Akai
Amplifier. It can damage the finish and might
ignite suddenly.
е To avoid damaging the finish, never use dena-
turated alcohol, paint thinner or other similar
chemicals to clean the Akai Amplifier.
@ Place the Akai Amplifier on a flat and solid
surface.
е If you don’t plan to use the Akai Amplifier for
a long period of time, disconnect the power
cord.
To enjoy the Akai Amplifier for a long time, please
read this operator’s manual thoroughly.
CAUTION
To prevent electric shock, do not use this
polarized AC power plug with an extension
cord receptacle or other outlet unless the
blades can be fully inserted to prevent blade
exposure.

3
Making the right connections
Before connecting
ө Turn off all the components before connecting.
@ Connect the power cord last.
e
Make
sure
that
you
connect
the
white
PIN-plug
to
the
left
(white)
jack
апа
the
red
PIN-plug
to
the
right
(red)
jack.
ө
Connect
everything
securely.
Loose
connec-
tions
can
lead
to
distortion.
ө
To
prevent
damage
to
the
cords,
connect
and
disconnect
by
holding
the
plug
and
not
the
cord.
e
Make
sure
that
the
power
cords
and
the
connec-
tion
cords
do
not
get
tangled
with
each
other.
This
can
lead
to
distortion.
е
Make
sure
to
connect
the
output
cord
of
the
player
system
to
the
PHONO
jacks.
Do
not
con-
nect
any
other
component
(such
as
a
CD
player)
to
these
PHONO
jacks.
ө ifthe turntable you are using has a ground wire,
connect
it
to
the
ground
terminal
of
the
amplifier.
AUX jacks
This is an auxiliary jack. Connect such components
as avideo disc player or cassette deck for play-
back to these jacks.
For dubbing from the input source to one tape deck
(for AM-32) or two tape decks (for AM-52), we
recommend using the AUX jacks for the input
source.
TAPE 2 jacks (for AM-52)
Connect the LINE IN jacks of the 2nd cassette
deck (left and right) to the TAPE 2 REC jacks (Іей
and right) of the Akai amplifier, and connect the
LINE OUT jacks of the cassette deck (left and right)
to the TAPE 2 PLAY jacks (left and right) of the
Akai amplifier.
a=
„« . |0000 (Еі
CD Player
“Cc OUTPUT
(C
Turntable
Right channei
speaker system
SPEAKERS А —>
(CD)
AM loop
antenna
[TUNER |
(гл)
=
(F To AC outlet

SPEAKER terminals
Be sure to connect the:
Ф wires to the @ terminals (red);
© wires to the © terminals (black); 4
Left speaker to the Left (L) terminals; and Right
speaker to the Right (R) terminals.
How to connect the speakers
1. Strip off 1 cm length of vinyl covering from the
end of the speaker cord.
2. Loosen the Red and Black speaker terminals by
turning them counter-clockwise. (These termi-
nals cannot be removed.)
3. Twist wires firmly, then insert the speaker cords
Left channel through the openings of the speaker terminal
speaker system guards.
4. Turn the terminals clockwise to securely fasten
-— SPEAKERSL the wires.
Note: For connection, we recommend the use of
high power, large diameter-type speaker
cords available in the Hi-Fi stores.
IMPORTANT: Do not cross connect speaker sys-
tems. Use either the A terminals or B terminals for
connection of a pair of speakers. Do not connect
one speaker to an A and the other to a B terminal.
Speaker impedance
Use speakers of 8 to 16 ohms impedance only.
Refer to the marking on the amplifier’s rear panel.
Amplifier
Power cord
Connect this cord to a household AC outlet. If using
the Akai Audio Timer, connect the power cord to its
AC OUTLET.
AC OUTLETS (not on some models)
Connect the power cords of the components con-
nected to the Akai amplifier.
SWITCHED:
The power to these AC outlets is cut when the Akai
amplifier is turned off. Make sure thatthe total
power consumption of the components connected
to these outlets does not exceed 200 watts.
—_LINEIN |
On the ADAPTOR jacks
The Akai amplifier is equipped with speck! ADAP-
TOR jacks for connection of a graphic equalizer ог
audio processor. Refer to page 8.
The DAT jacks
Connect a DAT (Digital Audio Tape) desk or the
2nd (АМ-32) or the 3rd (AM-52) cassett: deck to
these jacks. Refer to page 8.
Cassette Deck

5
Controls
© ©
©
© © 000 ©
BTEREG wTEGRATED АМР жн АМ-52
POWER switch and Indicator
To turn on and off the amplifier. The indicator
will light when the power is turned on.
SOURCE DIRECT switch and Indicator
For clearer, low distortion playback of a com-
pact disc, record, radio or DAT tape. The in-
dicator will light when the switch is turned on.
* When the switch is turned on, the BASS
and TREBLE tone controls and the BAL-
ANCE control are ineffective.
Input Select buttons (CD, PHONO,
TUNER, AUX and DAT) and Indicators
For selection of a playback source. The in-
dicator of the button you choose will light up
when depressed.
VOLUME control
To increase or decrease playback volume
level.
CARTRIDGE switch ( = MC/ = MM)
Adjust according to the type of cartridge you
are using.
MUTING switch
To reduce volume instantly during playback
without using the VOLUME control.
LOUDNESS switch
For instant compensation of tone setting at
low volume level.
TAPE MONITOR switch (AM-52 only:
TAPE 1/TAPE 2)
For cassette tape playback or monitoring
during recording operation.
MODE switch (AM-52 only: = MONO/
т STEREO)
To select the playback mode. Normally set
this switch to m STEREO.
AM-52
Q TAPE MONITOR indicator (АМ-52
only: TAPE 1/TAPE 2)
Tells you the TAPE MONITOR switch is en-
gaged.
BALANCE control
To adjust the left and right channel balance.
SUBSONIC switch ( — ON/ = OFF)
To reduce unwanted ultra low frequency dis-
turbance (less than 15 Hz) such as rumble
during record playback.
BASS and TREBLE Tone Controls
To adjust the high note (treble) and low note
(BASS) levels.
PHONES jack
For headphone listening.
SPEAKER switch (SYSTEM A/SYSTEM
B, — ON/ = OFF)
To select the speaker system.
өө ө өө
Protection circuit
When the Akai amplifier is turned on, no signal will
be output to the speakers for several seconds. This
is due to the protection circuit which prevents
output of noise when the Akai amplifier is turned
on.
The protection circuit also functions during play-
back to protect the speakers from overloading, and
to protect the circuit from damages. When speak-
ers with less than rated impedance are used, the
protection circuit will short-circuit the + and —
speaker cords. Therefore, should the sound be cut
during playback:
1 Turn off the Akai amplifier.
2 Check for and correct the cause.
3 Turnon the Akai amplifier.

Let’s Enjoy Music
Set the following controls VOLUME control —_——— Minimum (to 0)
before tuming on the power BALANCE control ———— Center ( О )
of your amplifier. LOUDNESS switch OFF ( ж)
MUTING switch—————— Ж ОРЕ
SUBSONIC switcth———— m OFF
MODE switch —————— Ж STEREO (АМ-52)
BASS and TREBLE
tone controls —----------_ Center position
SPEAKERS switches Set either A or B ОМ ( =. ) if
using 1 system, or both ON if
using 2 systems. Set both
OFF ( жа. ) if using head-
| phones.
4 For compact disc playback D
ө Depress the CD button.
© Play back a compact disc.
@ Adjust the VOLUME control to suit
| i your taste.
Ф Depress the POWER switch to turn
on the power.
О
ТТЕ
© Depress the PHONO button.
9 Play back а record.
@ Adjust the VOLUME contro! to suit
your taste.
D Depress the POWER switch to turn
on the power.
( For record playback
с 7
Listening to radio )
Өө Depress the TUNER selector.
Ө Tune in a station you want to isten to.
~
O
Adjust
the
VOLUME
contra
to
suit
a
your
taste.
Depress the TAPE MONITOR switch.
© Piay back a tape.
@) Adjust the VOLUME contra to suit
your taste.
Depress the POWER switch to turn
on the power.
D Depress the POWER switch to turn
on the power. |
For tape playback
* After playing back a tape, turn off the TAPE MONITOR switch, by depressing the button again.
* Before playing back a tape, make sure that the SOURCE DIRECT switch is turned off.

7 Basic recording
Let’s Record
ө The VOLUME, BALANCE, LOUDNESS, and
BASS and TREBLE tone controls can be adjust-
ed when recording.
If the tape deck is a З head deck, (one which
has independent heads for erasing, recording,
and playback), the just-recorded signals can be
monitored by depressing the TAPE MONITOR
switch (TAPE 1 or TAPE 2 for AM-52). The play-
back sound of the input source can be adjusted
with the VOLUME control of the amplifier, but it
will have no effect on the recording volume
level. To adjust the recording volume level, use
the tape deck’s REC LEVEL control.
© ©
Select the recording source with the proper
Input select buttons.
To record from ...
a compact disc — Depress the CD button
a record — Depress the PHONO button
the radio — Depress the TUNER button
an auxiliary source ~Depress the AUX
button
DAT tape — Depress the DAT button
Play back the source.
Prepare the tape deck or the DAT deck for
recording.
Begin recording.
For the AM-52 user
Do not depress both the TAPE 1 and TAPE 2
TAPE MONITOR switches at the same time
during recording.
if you want to monitor during recording when
the two decks are in the recording mode, turn
one of the TAPE MONITOR switches on and
turn the other one off.
Tape Dubbing For the AM-52 user
Depress TAPE 1 of the TAPE MONITOR
switch.
Depress TAPE 2 of the TAPE MONITOR
switch so it is OFF, the indicator light will turn
off.
Prepare the TAPE 1 deck for playback.
Prepare the TAPE 2 deck for recording.
To make a copy of a prerecorded cassette
tape:
©
O Begin recording.
ө Do not depress the TAPE 1 switch during tape
dubbing. If depressed, tape dubbing will not be
performed.
е Tape dubbing from the TAPE 2 deck to the
TAPE 1 deck cannot be done.
For the AM-32 user 1) Depress the AUX button of the input select
button.
For tape dubbing, connect a cassette deck for play-
back as follows: D Prepare the cassette deck connected to the
AUX jacks for playback.
Р Prepare the cassette deck connected to the
Connection z TAPE jacks for recording.
Connect the LINE OUT jacks of the cassette deck
to the AUX jacks of the amplifier with a connection (3) Begin recording
cord.
è If you want to monitor with the З head deck
during tape dubbing, depress the TAPE MONI-
TOR switch to on.
After monitored, depress the TAPE MONITOR
switch once again to turn off.
=
0000 Е
TLINE OUT

Expanding Your Hi-Fi System
ADAPTOR jacks
To achieve more finely adjusted tone compensa-
tion, connect a separate graphic equalizer or audio
processor to your Akai amplifier.
Amplifier
Audio Processor or
Graphic Equalizer
INPUT OUTPUT
DAT jacks
Amplifier
or
Cassette deck
Б
с=т= ee
=
ooo С) Е
Remove the short pins from the amplifiers ADAP-
TOR jacks.
Connect the amplifier’s ADAPTOR OUT jacks to
the Audio Processor’s or Graphic Equalizer’s
INPUT jacks.
Connect the amplifier’s ADAPTOR IN jacks to the
Audio Processor’s or Graphic Equalizers OUTPUT
jacks.
е Refer to the operator's manual of your audio pro-
cessor or graphic equalizer for further details.
ө Set your Akai amplifier’s built-in BASS and
TREBLE tone controls to their center position
when using an audio processor or graphic
equalizer.
For recording and playback with a DAT deck.
Connect the amplifier’s DAT REC jacks to the DAT
deck’s LINE IN jacks with a connection cord.
Connect the amplifiers DAT PLAY jacks to the DAT
deck’s LINE OUT jacks with a connection cord.
Note:
@ DAT deck: Digital Audio Tape deck
e You can use а cassette deck instead о! the DAT
deck. Connect it to the DAT jacks of the
amplifier.
During tape playback or tape dubbing opera-
tion
You can record from a compact disc, a record, the
radio or an auxiliary source with a DAT deck during
tape playback or tape dubbing operation.
1 Select a recording source with an input select
button such as the CD, PHONO, TUNER or AUX
buttons.
2 Prepare for playback and prepare the DAT deck
for recording.
3 Begin recording.
Ф if you want to monitor during recording, depress
the SOURCE DIRECT switch to turn ito п. After
you have finished monitoring, depess the
SOURCE DIRECT switch once again іо turn it
off.

The parts of the Akai Amplifier
If you want to reduce the volume
instantly during playback
Depress the MUTING switch MUTING
to ON ма. , To
=
Toresume the normal listening volume level
Depress the MUTING button once again to OFF ж.
For the best sound reproduction
from a compact disc, record, the
radio or an auxiliary source
Depress the SOURCE
DIRECT switch to ON = .
The indicator will light. REST
Note
When the SOURCE DIRECT switch is turned on,
the BASS, TREBLE and BALANCE controls are
ineffective. Tape playback can also not be per-
formed when the switch is on but recording will
operate.
Loudness compensation
The human ear is less sensi-
tive to low frequencies at low LOUDNESS
volume levels. If these fre- ac
quencies are not boosted or
compensated, the sound will
seem unnatural. A more
natural sound can be obtained by boosting the
bass responses. This is called loudness compen-
sation. When listening to music at low volume
levels, depress the LOUDNESS switch on ( =. ) for
an instant boost of the bass.
Headphone use and SPEAKER
switches
The SPEAKERS A and B buttons allow you to
switch between the speakers connected to the A
SPEAKERS terminals or the B SPEAKERS termi-
nals on the rear panel of the Akai amplifier.
If only one set of speakers is connected to the rear
SPEAKERS terminals, simply set the other button
to the OFF ( за) position. When listening
through headphones, set both speaker but-
tons to their OFF ( жо) positions.
C
To adjust tone during playback
Use the BASS and TREBLE tone controls
To increase or decrease the bass
eo wes Soo AN N, use the BASS control.
To increase or decrease the treble
РРР use the TREBLE control.
During record playback
If your player system uses the MC (Moving
Coil) type cartridge
Set the CARTRIDGE selector
switch їо МС =a .
CARTRIDGE
Otherwise set this switch to йө
MM ж.
Before setting the CAR-
TRIDGE switch, read car-
tridge’s instruction sheet.
If the woofer cone vibrates during record
Co
playback
Set the SUBSONIC switch to
ON PRAN жег |
* Set the SUBSONIC switch саг
to OFF Ж. for other С] |
source playback.
MODE switch (AM-52 only)
If you want monaural sound playback, set the
MODE switch to MONO =. . With the MODE
switch in the off position, playback will be in stereo.
When a normal sound VCR (monoaural sound
type) is connected to one of the AUX jacks (left or
right); Set the MODE switch to MONO = during
playback. The same sound will heard from the left
and right channel speaker system.
The BALANCE control
Use the BALANCE control
when you feel that there is a
deficiency in the left and
right balance due to the
speaker placement.
It is best to use a monaural
source to test the balance. After setting the
volume, tune in an AM station and turn the BAL-
ANCE control to left or right to boost the volume in
the right or left channel respectively.
TAPE MONITOR switches (AM-52)
The ТАРЕ MONITOR
switches are independent of
the other input select but-
tons. It is necessary to
switch them OFF in order to
listen to a different source.
The AUX button
Depress the AUX button to
play back a component
which is connected to your
amplifier’s AUX jacks; such
as a cassette deck for play-
back or a video disc player.
TAPE MONITOR |
TAPE 1 TAPE 2
OA