Kenwood GE-970 User manual

GRAPHIC EQUALIZER
GE-970
INSTRUCTION MANUAL
KENWOOD CORPORATION
When you play a music source while this unit is connected to
your system, always turn the power of this unit ON regardless
of whether you use the graphic equalizer functions or not.
(The audio signal reproduced by the source playback compo-
nent is sent to the amplifier by passing through this unit.
Therefore, the music source cannot be listened to unless the
power of this unit is ON.)
B60-1388-00
94/12 1110987654
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3/12 11109876
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Introduction
i
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Your choice of this product indicates that you are a devotee
to excellence in sound reproduction.
We appreciate your patronage and take pride in the long tradi-
tion of quality components that our company represents.
So that you can get the most out of your unit, we suggest that
you take the time to read through this manual before you hook
up and operate your system. This will acquaint you with oper-
ating features and system-connection considerations so that
your listening pleasure will be enhanced right from the start.
You will notice that in all aspects of planning, engineering,
styling, operating convenience and adaptability we have sought
to anticipate your needs and desires.
Keep this manual handy for future reference.
For your records
Record the serial number, found on the back of the unit, in
the spaces designated on the warranty card, and in the space
provided below. Refer to the model and serial numbers
whenever you call upon your dealer for information or service
on this product.
Mode! __________ Seria! Number
Unpacking
Unpack the unit carefully and make sure that all accessories
are put aside so they will not be lost.
Examine the unit for any possibility of shipping damage. if
your unit is damaged or fails to operate, notify your dealer
immediately. If your unit was shipped to you directly, notify
the shipping company without delay. Only the consignee (the
person orcompany receiving the unit) can file a claim against
the carrier for shipping damage.
We recommend that you retain the original carton and pack-
ing materials for use should you transport or ship the unit in
the future.
Contents
A Safety precautions
A\ IMPORTANT SAFEGUARDS
System connections
Controls and indicators
Operation of graphic equalizer
Contents of display
Character display
Demonstration procedure
Operation of Al AUTO (for CD play only)...
Operation of Al FOCUS (for CD play only) ....
Storing optimum equalizer curve (Al FILE)
Playback
by
recalling
a
stored
equalizer
curve
Operation of MANUAL/REFERENCE feature
Equalizer pattern list
Fine adjustment of each frequency band
{Graphic mode)
User-preset
of
user-created
pattern
(M-1
to
M-5)
How touse the REC MODE key
Bass Compensation
2 GE-370 fn)
Caution: Read the pages marked Lv carefully to ensure safe operation.
AC plug adaptor
(except for U.K., Australia and Europe)
For the unit with a European AC
plug in areas other than Europe.
Surround Modes and presence modes
Speaker layout
DOLBY SURROUND
Operation of Dolby Surround playback ..
DOLBY 3 STEREO
DOLBY 3 STEREO adjustment
DOLBY 3 STEREO playback
Presence
Y
Presence playback
Combination of presence and environmental sound
(F. 4ch only)
To turn presence effect OFF
To record with presence effect
Let's sing
Regular MIC MIXING
Using HIT MASTER
Singing with echo
Song Recording
In case of difficulty ....
A Specifications

Before applying power
A Caution: Read this page carefully to ensure safe operation.
aL a eI TS a SE
For the U.S.A. and Canada
Important!
Units shipped to the U.S.A. and Canada are designed for
operation on 120 volts AC only.
For the United Kingdom
Important!
Units shipped to the U.K. are designed for operation on 240
volts AC only.
The mains plug must be removed from the wall socket prior to
any internal examination.
The wires in this mains lead are coloured in accordance with the
following code:.
Neutral
The wiresin this mains lead must be connected to the terminals
in the plug as follows:
Wire colour Plug terminal marking
N or Black
L or Red
Blue to
Neutral
Plug
Notes: ______________
1. If a 13-amp plug is used, this must be fitted with a 13-amp
fuse.
2. If a 3-pin plug with earthing contact is used, no wire must be
connected to the E terminal.
Safety precautions
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIAS GLE,
IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED “DANGEROUS VOL-
TAGE” WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNTUDE
TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERF THE
USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICINCS) IN-
STRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE, REFER SER-
DONCT OREN VICING TO QUALIFIED SERVICE PERSONNEL.
For Australia and Europe
Important!
Units shipped to Australia are designed for operation on 240 V AC
only.
Units shipped to Europe are designed for operation on 230 V AC only.
For other countries
Important!
Units shipped to countries other than the above countries areequipped
with an AC voltage selector switch on the rear panel. Refer to the
following paragraph for the proper setting of this switch.
AC voltage selection
This unit operates on 110-120 or 220-240 volts AC. The AC voltage
selector switch Type A or Type B on the rear panel is set to the
voltage that prevails in the area to which the unit is shipped. Before
connecting the power cord to your AC outlet, make sure that the
setting position of this switch matches your line voltage. If not, it
must be set to your voltage in accordance with the following
direction.
AC voltage selector switch
_
Type A
Ll
AC110- «> AC220-
120 V ~ 240 V ~
—_ <_
AC 110-
AC 220V~ AC 230-240V ~
120V~
Move switch lever to match your line voltage with
a small screwdriver or other pointed tool.
Note:
Our warranty does not cover damage caused by excessive line
voltage due to improper setting of the AC voltage selector switch.
GE-GO (En) 3

IMPORTANT SAFEGUARDS
Please read all of the safety and operating instructions
before operating this appliance. Adhere to all warnings on
the appliance and in the instruction manual. Follow ali the
safety and operating instructions. These safety and
operating instructions should be retained for future
reference.
1. Power sources — The appliance should be connected to
a power supply only of the type described in the instruction
manual or as marked on the appliance. If you are not sure
of the type of power supply to your home, consult your
appliance dealer or local power company. For appliances
intended to operate from battery power, or other sources,
refer to the instruction manual.
2. Power-cord protection —Power-supply cords should
be routed so that they are not likely to be walked on
or pinched by items placed upon or against them,
pay particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the
appliance.
Never pull or stretch
the cord.
3. CAUTION —- Polarization -— This appliance may be
equipped with a polarized alternating-current line plug (a
plug having one blade wider than the other). This plug will
fit into the power outlet only one way. This is a safety
future. If you are unable to insert the plug fully into the
outlet, try reversing the plug. If the plug should still fail to
fit, contact your electrician to replace your obsolete outlet.
Do not defeat the safety purpose of the polarized plug.
4. Ventilation - Slots and openings in the cabinet are
provided for ventilation and to ensure reliable operation of
the appliance and to protect it from overheating, and these
openings must not be blocked or covered. The appliance
should be situated so that its location or position does not
interfere with its proper ventilation.
To maintain good ventilation, do not put records or a table-
cloth on the appliance. Place the appliance at least 10 cm
away from the walls.
Do not use the appliance on a bed, sofa, rug or similar
surface that may block the ventilation openings. This
appliance should not be placed ina built-in installation such
as a bookcase or rack unless proper ventilation is provided
or the manufacturer's instructions have been adhered to.
5. Waterand moisture - The appliance should not be
used near water - for example, near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, etc.
GE-970 (En)
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A Caution: Read this page carefully to ensure safe operation.
6. Temperature - The appliance may not function
properly if used at extremely low, or freezing
temperatures. The ideal ambient temperature is
above +5°C (41°F).
7. Heat -The appliance should be situated away from
heat sources such as radiators, heat registers, stoves,
or other appliances (including amplifiers) that produce
heat.
8. Electric shock — Care should be taken so that objects
do not fall and liquid is not spilled into the enclosure
through openings. If a metal objects, such as a hair
pin or a needle, comes into contact with the inside of
this appliance, a dangerous electric shock may result.
For families with children, never permit children to
put anything, especially metal, inside this appliance.
9. Enclosure removal — Never remove the enclosure.
If the internal parts are touched accidentally, aserious
electric shock might occur.
10.Magnetic fields - Keep the appliance away from
sources of magnetic fields such as TV sets, speaker
systems, radios, motorized toys or magnetized
objects.
11.Cleaning -— Unplug this appliance from the wall
outlet before cleaning. Do not use volatile solvents
such as alcohol, paint thinner, gasoline, or benzine,
etc. to clean the cabinet. Use a clean dry cloth.
12. Accessories ~ Do not place this appliance on an umstable
cart, stand, tripod, bracket, or table. The appliance may fall,
causing serious injury to a child or adult, and serious
damage to the appliance. Use only with a cart stand,
tripod, bracket, ortable recommended by the manuiescturer,
or sold with the appliance. Any mounting of the appliance
should follow the manufacturer's instructions, ani should
use a mounting accessory recommended by the
manufacturer. An appliance and cart combinatior should
be moved with care. Quick stops, excessive force, and
uneven surfaces may cause the appliance and cart
combination to overturn.

13.
14.
15.
16.
17.
Lightning — For added protection for this appliance during
a lightning storm, or when it is left unattended and unused
for long periods of time, unplug it from the wall outlet and
disconnect the antenna or cable system. This will prevent
damage to the appliance due to lightning and power-line
surges.
Abnormal smell - [f an abnormal smell or smoke is
detected, immediately turn the power OFF and unplug
the appliance from the wall outlet. Contact your dealer or
nearest
service
center.
_
POWER
OFF!
Se
Damage requiring service — The appliance should
be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been
damaged.
B. Objects have fallen, or liquid has been spilled into
the appliance.
C. The appliance has been exposed to rain or water.
D. The appliance does not appear to operate normally
by following the instruction manual. Adjust only those
controls that are covered by the instruction manual as an
improper adjustment of other controls may result in damage
and will often require extensive work by a qualified
technician to restore the appliance to its normal operation.
E. The appliance has been dropped, or the enclosure
damaged.
F. Theappliance exhibits a marked change in performance.
Servicing — The user should not attempt to service
the appliance beyond that described in the instruction
manual. All other servicing should be referred to
qualified service personnel.
Outdoor antenna grounding - If an outside antenna
is Connected to the appliance, be sure the antenna
system is grounded so as to provide some protection
against voltage surges and built up static charges.
Article 810 of the National Electrical Code ANSI/
NFPA 70, provides information with respect to proper
grounding of the mast and supporting structure,
grounding of the lead-in wire to an antenna discharge
unit, size of grounding conductors, location of antenna
discharge unit, connection to grounding electrodes,
and requirements for the grounding electrode. See
Figure.
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL
ELECTRICAL CODE
ANTENNA
LEAD IN WIRE
>» DISCHARGE UNIT
U
ELECTRIC (NEC SECTION 810-20)
SERVICE
EQUIPMENT
LAY, GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMP
v=t—— POWER SERVICE GROUNDING
ELECTRODE SYSTEM
{NEC ART 250, PART H)
NEC - NATIONAL ELECTRICAL CODE
A
Caution
:
Read
this
page
carefully
to
ensure
safe
operation.
18.Power lines — An outside antenna system should not be
located
in
the
vicinity
of
overheated
power
lines
or
other
electric
light
or
power
circuits,
or
where
it
can
fall
into
such
power
lines
or
circuits.
When
installing
an
outside
antenna
system,
extreme
care
should
be
taken
to
keep
from
:
touching
such
power
lines
or
circuits
as
contact
with
them
i
might be fatal.
19.AC
outlets
-
Do
not
connect
other
audio
equipment
with
a
power
consumption
larger
than
that
specified
to
the
AC
outlet
on
the
rear
panel.
Never
connect
other
electrical
appliances,
such
as
an
iron
or
toaster,
to
it to
prevent
fire
or
electric
shock.
20.
Overloading
~
Do
not
overload
wall
outlets,
extension
cords,
or
integral
convenience
receptacles
as
this
can
result
in
a
risk
of
fire
or
electric
shock.
21.
Attachment
-
Do
not
use
attachments
not
recommended
by
the
appliance
manufacturer
as
they
may
cause
hazards.
22.
Replacement
parts—When
replacementparts
ale
required,
be
sure
the
service
technician
has
used
replacement
parts
specified
by
the
manufacturer
or
have
the
same
characteristics
as
the
original
parts.
Unauthorized
substitutions
may
result
in
fire,
electric
shock,
or
other
hazards.
23. Safety check - Upon completion of any service or repairs
to
this
appliance,
ask
the
service
technician
to
perform
safety
checks
to
determine
that
the
applianceis
in
proper
operating condition.
Notes:
1. !tem3is not required except for grounded or polarizey €&qQuipment.
2. Item 17 and 18 are not required except for units jroovided with
antenna terminals.
3. Item 17 complies with UL in the U.S.A.
€-B70(En) 5

System connections
Make connection as shown below. When connecting the related system components, refer also to the instruction
manuals of the related components.
Do not plug in the power lead until all connections are completed.
KENWOOD integrated amplifier
(A-97, A-87)
Shape of AC
outlet
AUSTRALIA x1
Unit destination
Unplug the shorting pins from
the ADAPTOR jacks and connect
the (For U.K. and Europe)
SS
To "Switched"
AC outlet on
AC
voltage
‘
Europe
|
selector switch the amplifier : xe
(Except for U.K. rear panel Other countries
and Europe)
For the connection of the SYSTEM
CONTROL terminals and power
cords, refer to connection diagram
of the main sustem.
¢ Do not connect other amplifier than the KENWOOD A-97 and A-87 amplifier to the ADAPTOR (DUAL-FUNCTION CONNECTERS) jacks.
© Do not connect the LVD-97 to the AC OUTLET on the rear panel. (For the K-99LD system.)
System control connection cuick When unplugging the cord
When connected to the main system, system operation x O ee 2
such as remote contro! is made possible. For details,
refer to the instruction manual of the main system.
If your armplifier or receiver is not equipped with the
SYSTEM CONTROL terminals, do not connect anything Push
to any SYSTEM CONTROL terminal.
Do not connect the unit in any system configuration Insert securoly sneilirt ¢hices
other than specified. * Be sure to insert the system control cord plugs fully int) the
SYSTEM CONTROL terminals.
®}f the system contro! cord and audio cords are not conneccted
properly, the automatic system governing remote contro and
system functions will not operate.
Notes:
1. Connectall cords firmly. If connections are loose, there could be loss of sound or noise produced.
2. When plugging and unplugging connection cords, be sure to first remove the power cord from the AC outlet. Plugging/unpluy ging
connection cords without removal of the power cord can cause malfunctions or damage to the unit.
3.
Do
not
connect
up
a
power
source
which
is
larger
than
that
indicated
on
the
socket
at
the
rear
of
the
unit.
6 GE-970 En)

Controls and indicators
Ran
PS
TS
IE
Frequency
levei
indicator
Frequency
presence
mode
Peak
level
indicator
and
other
information
Speaker mode indicator
RRa8 Be eee EQ. ON indicator
REC MODE indicator
MEMORY indicator
MANUAL/REFERENCE indicator
DOLBY SURROUND indicator
DOLBY 3 STEREO indicator
F.2ch, F.4ch, S.4ch indicator
HIT MASTER indicator
ACTIVE N.B. indicator
FILE DATA indicator
as >
F.2ch key
F.4ch
key
Al
key
|
FILE
key
S.4ch key
OFF
key
EQ.
MEMO
key
FILE
MEMO
key
MULTLCON
TROL
Inge
MIC ECHO key
EFFECT key| — (Except for the U.K. and Europe)
FLAT key
REF./MANU.key DELAY/ASFC key
ay
MIC MIXING knob (Except
POWER
key
__
for
the
U.K.
and
Europe)
REC
MODE
key
the
UK. ancl
Eero)
PRESET
key
ACTIVE
N.B.
key
Equalizer
control
key
HIT
MASTER
key
CHARACTER
key
DOLBY
PRO
LOGIC
key
DISPLAY
key
DOLBY 3 STEREO key
a-S70 (En F
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Operation of graphic equalizer
Re
ie
a
a
a
a
aE
Te
a
TR
This
unit
is
a
near-professional
type
graphic
equalizer
which
allows
fine
adjustments
of
frequency
bands.
It
not
only
provides
acoustic
compensation
for
the
characteristics
of
your
listening
room,
but
also
reproduces
each
music
source
with
adequate
tone
using
the
following
Al
(Artificial
intelligence)
features.
1. DEMO (Demonstration)
Displays
various
equalizer
curves
visually
in
sequence
together
with
the
actual
sound
effect
of
each
curve
as
an
audible
|
demonstration.
|
2. Al-AUTO (available only for CD play)
When
playing
a
CD
with
the
presence
effect
OFF,
checks
the
contents
recorded
on
the
CD
automatically,
and
sets
the
optimum
equalizer
pattern
and
LINEAR
ACOUSTIC
control
knob
on
the
amplifier
(A-87,
A-97)
according
to
the
CD.
(Refer
to
page
10.)
3.
Al-FOCUS
(available
only
for
CD
play)
;
When
playing
a
CD
with
the
presence
effect
ON,
checks
the
contents
recorded
on
the
CD
with
respect
to
the
presence
:
;
mode
selected,
and
sets
the
optimum
equalizer
pattern
and
ASFC
setting
and
LINEAR
ACOUSTIC
control
knob
on
\
the
amplifier
(A-87,
A-97)
according
to
the
CD
and
the
presence
mode
selected.
(For
the
ASFC (Acoustic
Surround
Field
Control),
refer
to
page
25.)
4. AI-LINK (available for all input sources)
When
the
presence
mode
is
selected,
optimum
equalizer
curve
for
this
mode
is
selected
automatically
to
enhance
the
|
presence effect. The LINEAR ACOUSTIC control knob on the amplifier (A-87, A-97) is set automatically according to the
selected sound field.
5. AI FILE (available only for CD play)
The equalizer curve set with the Al feature and the balance set with the LINEAR ACOUSTIC control of the amplifier can
be
stored
for
up
to
60
Compact
Discs.
When
a
CD
with
its
data
stored
in
the
Al
File
is
played,
this
function
makes
the
time of Al setting (about 30 seconds) unnecessary. If a presence mode (F.2ch, F.4ch, S.4ch) is selected, the optimum
ASFC (the setting factor determining the sound expansion) is also set automatically.
6. MANUAL/REFERENCE modes
REFERENCE:
Ten
exemplary
patterns
have
been
preset
at
the
factory.
(Refer
to
page
14.)
MANUAL:
Five
preset
patterns
have been
factory-preset
for
this
mode,
too.
In
this
mode,
it
is
also
possible
to preset (assign) equalizer patterns created by the user in place of the factory presets.
7. CHARACTER
In the spectrum analyzer display mode, the level of the music being played and changes of frequency distribution with
four different patterns are displayed.
SPE. ANA 1: NORMAL Normal spectrum analyzer display
2:
SHOWER
Reversed
normal
spectrum
analyzer
display
with
the
normal
peak
hold
levels
display
3.
HORIZONTAL
Displays
right
and
left
levels
with
the
frequency
band
in
vertical
axis
and
level
in
horizontal axis.
4; SEE-THROUGH Displays peak and peak hold levels only.
ANIMATION
Displays
various
patterns
regardless
of
the
freguency
or
level.
8. REC MODE (For car stereo, headphone stereo)
The equalizer pattern displayed is also applied to the sound recorded on tape. In addition, a recording equalizer curve
“CAR’, which records sound so that optimum balance is obtained when the tape is played on a car stereo, and
recording equalizer curve “HEADPHONE ST.”, which records sound so that optimum balance is obtained when ‘the
tape is played on a headphone stereo, are provided. By selecting one of these two REC MODES together with an
equalizer pattern of Al-AUTO or MANUAL/REFERENCE, both effects can be applied to the recording, so that thetape
simulates
the
sound
of
a
listening
room
through
a
car
stereo
or
headphone
stereo.
(Refer
to
page
16.)
Al:
Artificial
Intelligence.
The
Al
is
capable
of
adjusting
the
tone
automatically
according
to
the
source
and
music
categories
8 GE970 «En

DISPLAY key CHARACTER key
Contents of dispiay
DISPLAY
The display mode changes every
time the [DISPLAY |key is pressed.
Graphic equalizer display
¢ During recording on the cassette deck, this key switches only
between the graphic equalizer display and spectrum analyzer
display.
Graphic equalizer display
Shows how each frequency range is compensated.
The graphic equalizer display also appears for about 5 seconds,
even while the unit is in the spectrum analyzer display mode, when
one of the following operations is performed.
1. Switching power ON.
2. Anoperation key associated with an equalizer operation is
pressed.
DEMO (Demonstration)
A Baz eeag
i 2S
j uze
: zEg EES
eo eee Sree Se.
EER i
Spectrum
analyzer
display
seef.
:
Displays the frequency distribution of the source being
played to allow understanding at a glance.
The peak value of the varying level of each frequency range is held
and displayed for about 0.5 seconds.
Character display
Press the [CHARACTER] key during the spectrum analyzer display mode.
CHARACTER _
The display mode changes every time
the [CHARACTER] key is pressed.
NORMAL
SHOWER
HORIZONTAL
G-2701En 9
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Operation of graphic equalizer
@ Demonstration procedure
This feature makes it possible to check the equalizer effects both visually and audibly.
@
Select
an
input
source
eas
——m
SPECTRUM
ANALYZER
DEMO
(Demonstration)
ee
a
Al (AUTO)
@ Play the source. AI LINK
@® Select DEMO with the DISPLAY key. REFERENCE? (R1) 1~5
@ Demonstration is repeated in the following cycle. REFERENCE2 (R2) 1~5
MANUAL (M) 1~5
e
Press
the
key
to
stop
demonstration.
REC
MODE
*
During
Al
LINK
demonstration,
the
Surround
mode
also
changes.
Selecting
"DEMO"
starts
e |fthe demonstration is started while the unit is in the Surround mode, the Surround sequential demonstration.
mode will be turned OFF during demonstration.
@ Operation of Al AUTO (for CD play only)
When
playing
a
CD
with
the
presence
effect
OFF,
the
equalizer
curve
suitable
for
a
specific
disc
is
set
automatically
by
simply
pressing
the
Al key.
1 Place a disc in the CD player. jemas Track Nos
in disc are
TRACK
lights
up.
:
indicated.
Check that the presence mode is OFF.
2 Press the Al key.
Blinks Lights up.
\_! 7) about 30 sec.
—
ends
nalyzer displa
Completes and stops in Spectiunmnenaly: el
about 30 seconds. Graphic equalizer display
¢ Wait for about 30 seconds untiliEQ.ON| and
light up.
© The LINEAR ACOUSTIC control knob on the amplifier (A-87, A-
97) is set automatically.
The playback starts automatically.
Note:
In step 2, the other keys than the and the [POWER] key do not operate.
To cancel Ai AUTO
e goes off.
¢ If it is cancelled during Al AUTO setting operation, te last
pattern selected before is displayed.
¢
Al
AUTO
is
canceled
also
when
the
disc
tray
is
openc,
Cancellation
during setting Cancellation during play
10 Ges706n)
i
i
i

Al key MULTI CONTROL knob
Presence mode keys
@
Operation
of
Al
FOCUS
(for
CD
play
only)
When
playing
a
CD
with
the
presence
effect
ON,
the
delay
time,
presence
volume
(reverberation
level
)
and
equalizer
curve
are
set
automatically
by
simply
pressing
the
Al
key.
CD player display
| RESIS : in disc are
!
7.
indicated.
Lights
up.
tf
ong
| Place a disc in the CD player.
2 Select the desired presence mode.
3 Select a sound field.
Mode name display
MULT CONTROL
“PN
4 Press the Al key.
®
The
ASFC
(Acoustic
Surround
Blinks
Lights
up.
Field
Control)
and
an
equalizer
\\_!
/_
about
30
sec.
pattern
are
set
according
tothe
—
=
presence
mode
selected.
7HIN~
Ciiniciasigndeube
*
The
LINEAR
ACOUSTIC
control
about
0
encode
knob
of
the
amplifier
(A-87,
A-
7
97)
is
set
automatically
accord-
ing
to
the
selected
sound
field.
e
Wait
for
about
30
seconds
until
[EQ.ONJand
[Al]
light
up.
© Playback starts automatically.
Spectrumanalyzer display
Graphic equalizer display
Note:
In
step
4,
the
other
keys
than
the
and
the
[POWER]
key
do
not
operate.
To cancel Al FOCUS
. [Al] goes off.
e
|f
it
is
cancelled
during
At
FOCUS
setting
operation,
the
last
pattern
selected
before
is
displayed.
Al
FOCUS
is
cancelled
also
when
the
disc
tray
of
the
CD
player
is opened. Cancellation
during
setting
Cancellation
during
play
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Operation of graphic equalizer
Presence mode keys
@ Storing optimum equalizer curve
(Al FILE)
The graphic equalizer curves set with the Al can be stored
in memory for up to 60 discs. When a CD with its data
stored in the Al File is played, itis not necessary to wait the
Al setting because these settings are recalled automati-
cally.
1 Place a disc in the CD player.
2 Press the Al key.
The optimum equalizer curve is selected in
about 30 seconds.
Blinks Lights up
~~! / UApprox. 30 sec.
= =
7\IN~
ends
During sampling
After sampling
3 Press the FILE MEMO key.
Lights up
* The equalizer curves set with the Al feature can be stored.
* Data ofup to 60 CDs can be stored. When data of the 61st disc
is stored, the data of the CD with the least frequency of use
is cleared. (By checking the last time each data was used, the
data which has not been used for the tongest period of time
is cleared.)
12 GE970 ¢)
FILE key
FILE MEMO key
MULTI CONTROL
knob
@ Playback by recalling a stored
equalizer curve (Al FILE)
Press the FILE key.
Lights up.
Keep the FILE key OFF when it is not required to recall the Al
FILE data.
Place a CD with already stored data.
Lights up.
[BSP OFF
—
une
gs
The FILE DATA indicator lights when CD the data of which has
already been stored is placed and the tray is closed.
To play with a presence mode, also select the
presence mode.
@ Select a mode. @ Select a sound field.
MULT CONTROL
a5 FY
==»
U
3 Play the disc.
The stored equalizer curve is recalled andttre
playback starts.
e If apresence mode has been selected, the ASFC (the setisag
factor determining the sound expansion) is also set uto-
matically.
¢ The optimum LINEAR ACOUSTIC control balance (the b al-
ance of volume between the main and omnidirectional sjesk-
ers) is also set automatically.
i
:

REF./MANU. key
Operation
of
MANUAL/REFERENCE
feature
This
feature
makes
it
possible
to
recall
one
of
fifteen
preset
equalizer
patterns
in
a
simple
manner.
The
equalizer
patterns
of
the
MANUAL
mode
(M-1
to
M-5)
are
mainly
for
use
in
playback
with
Surround
effect.
1 Select an input source on the amplifier.
Remote control unit
2 Play the music source.
3 Press the EFFECT key.
Lights up.
Remote control unit
4 Select an equalizer pattern.
@
Set
to
MANUAL
or
REFERENCE
1,
2.
@
Press
the
key
for
the
desired
pattern.
(Refer
to
the
equalizer
pattern
list
on
page
14).
REF. /MANU. 4 2 3 4 s
Th
=
hy
|
BSPOFF
Example when “3” is selected in the MANUAL mode.
MANUAL REFERENCE-1
Remote
control
unit
REFERENCE-2
Patterns are switched every time the |M. CALL] key is pressed.
To
cancel
the
equalizer
effect
How
to
use
FLAT
key
Reemain ON.
e
The
pattern
being
displayed
remains
the
same.
e
Pressing
the
[FLAT]
key
flattens
the
curve.
&-270 (En) 13
;
i
i
:
i
;
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i
i
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i
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Operation of graphic equalizer
@ Equalizer pattern list
15 kinds of preset equalizer patterns can be recalled
easily.Select the optimum pattern.
REFERENCE 17 (R1-1 to 5) equalizer patterns
(Popular, Fusion)
Makes the fusion music or the vocal of pop music
distinct while providing optimum compensation for
the low and high frequencies.
(Rock)
Makes the vocal of rock music distinct while providing
optimum compensation for the low and high fre-
quencies.
(Jazz)
Makes the midrange frequencies in jazz music, in-
cluding the vocal, piano and sax distinct, while pro-
viding optimum compensation for the low and high
frequencies.
(Classic)
Provides well, balanced classical music by compen-
sating the low, midrange and high frequencies.
(Movie)
Makes the dialogue distinct while providing optimum
compensation for the low and high frequencies.
REFERENCE 2 (R2-1 to 5) equalizer patterns
(Popular, Fusion)
Reproduces crisp sound with distinct vocal and
enhanced low and high frequencies.
(Rock)
Reproduces powerful sound with distinct vocal and
enhanced low and high frequencies of the bass,
guitar and drums.
(Jazz)
Makes the vocal, piano and sax more distinct while
providing powerful, full bass and drum sound by
enhancing the low and high frequencies.
(Classic)
Reproduces dynamic sound with a full scale through
heavy low, powerful midrange and unrestrained high
frequencies.
(Movie)
Makes the dialogue distinct while enhancing the low
and high frequencies for a powerful sound with full
atmosphere of presence.
14 GE970 €n)
MANUAL (M-1 to M-5) equalizer patterns
User-set curves can be stored in this mode.
(Popular, Fusion)
Makes the fusion music or the vocal of pop music
distinct while making the low and high frequencies
clear by enhancing them. ;
(Rock)
Makes the vocal of rock music distinct and enhanced
the low and high frequencies.
(Jazz)
Makes the jazz vocal and drums distinct, while
making the low and high frequencies clear by en-
hancing them.
(Classic)
Attenuates the low frequencies and enhanced the
midrange and high frequencies to provide wind
instruments and vocals with unrestrained sound.
(Movie) :
Makes the dialogue distinct by attenuating the low
and high frequencies. Also reduces noise in old
movies, etc.
i
;
d
|
}

i Fine adjustment of each frequency
band (Graphic mode)
1 Press the EFFECT key to set the equalizer to ON.
Ligh .
ights up.
Equalizer pattern display
3 Select the frequency band to be adjusted.
To higher
frequencies
To lower
frequencies
ah,
Press the EQ. control keys.
4 Adjust its level.
To increase
To decrease
Press the EQ. control keys.
5 For each frequency band to be adjusted, repeat
steps 3 and 4 above.
EFFECT key
REF./MANU. key
Preset number keys EQ. control keys
@ User-preset of user-created
pattern (M-1 to M-5)
1 Create a desired equalizer pattern.
e
Any
equalizer
pattern
can
be
preset
if
it
is
being
displayed.
°
The
pattern
cannot
be
preset
during
operation
of
Al
AUTO
or
Al
FOCUS.
2
Preset
the
equalizer
pattern
in
the
manual
memory.
@
Press
the EQ.
MEMO
key.
Lights
up.
-
@ Press one of the preset number keys.
41 2 3 4 5
Press while [MEMORY
is lit.
¢ Patternis preset under the number of the numerickey pressed.
¢
Up
to
five
patterns
can
be
preset
in
the
same
manner.
e
When
a
pattern
has
previously
been
preset
under
the
numeric
key
pressed,
the
newly
preset
pattern
replaces
the
previous
pattern.
To return to the initial pattern (factory-preset
patterns M-1 to M-5 on page 13) by clearingthe user-
preset pattern.
@ Select the MANUAL mode.
REF. /MANU.
@ Press the preset key where the patiern to be
cleared is preset for more than 5 seconds.
4
ce-970 (En) 45
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Operation of graphic equalizer
@ How to use the REC MODE key
Use the following function when recording tapes to be
played on a car stereo or headphone stereo.
1 Press the EFFECT key to set the equalizer to ON.
Lights up.
2 Select an input source and the desired curve.
¢ Refer to page 10 to 15.
3 Select a REC MODE.
REC MODE When you select “HEADPHONE ST.”
Each press switches the modes.
CAR
(Recording
for
car
stereo)
=
HEADPHONE
ST.
(Recording
for
head
phone
stereo)
OFF
(Curve
before
pressing
REC
MODE)
® The pattern for car stereo recording or headphone stereo
recording is combined with the currently-selected equalizer
pattern.
© Select OFF (indicator extinguished) when the unit is used as an
ordinary equalizer or for general recording for other tapes than
those played on a car stereo or a headphone stereo.
4 -Play amusic source and start recording.
« Refer to the Instruction Manual of the main system.
To cancel the REC MODE
Press the key to select OFF (indicator goes off).
REC MODE
* The display shows the curve before synthesis again.
16 GE-970 cen)
EFFECT key
REC MODE key ACTIVE N.B. key
@ Bass Compensation
Example: setected mode 3
(After approx. 5 seconds the
display returns to the
original state.)
Display:
ANB 1 —— ANB 2 — ANB3
Goes off (OFF)
Each press switches the modes in order.
ACTIVE N.B.: Active Natural Bass Circuit
© The bass compensation mode is switched over every time the
key is pressed. Select the desired mode.
* When the [ACTIVE N.B] key is ON, even if the display is
showing the spectrum analyzer display, it changes tothe
graphic equalizer display whener the equalizer pattern charges.
ACTIVE N.B. circuit
Automatically compensates the amount of bass appropiate
to the content of the music played. The following tiree
modes are available.
@ ANB 1: Bass varies automatically every 1.6 secons.
@
ANB
2:
Bass
varies
automatically
every
8
second,
@ ANB 3: Bass varies automatically every 16 seconi,
ANB 1 is suitable for tunes in which the bass varies at hort
intervals. Select ANB 2 or ANB 3 as the variation interval
lengthens. The above description serves only as refererce.
Please play sound in various modes and select the one‘hat
suits your taste best.
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Functions of graphic equalizer
Compensation for the audio characteristics of
the listening room
The
listening
room
may
contain
several
objects.
Some
of
them
reflect
sound
and
some
absorb
sound.
thus
the
sound
reaching
your
ears
is
considerably
affected
by
these
objects.
In
such
cases,
the
graphic
equalizer
can
be
used
to
adjust
the
frequency
response
of
the
room
for
a
flat
response
from
low
to
high
frequencies.
Low frequencies are absorbed by beds, chairs, etc.
High
frequencies
are
absorbed
by
curtains,
screens,
etc.
¢
The
room
structure
can
cause
the
low
frequencies
to
be
unclear,
or
the
sound
level
to
increase
or
decrease
de-
pending
on
the
frequency.
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Adjustment of sound to your individual taste
When
the
reproduced
sound
contains
several
musical
instru-
ments
and
voices,
the
graphic
equalizer
allows
you
to
en-
hance
or
attenuate
the
sound
of
specific
instruments
or
voices.
Original,or ideal,speaker Actual sound reaching the
sound listener
Sound equalization
e Super bass range (40 Hz~63 Hz) e Mid-high range (1.5 kHz~2.5 kHz)
When this contro! is moved up, the bass instrument
(double bass, bass drums, or pipe organ, etc.) sound is
increased. When the super bass sound is boomy, move
this control down.
Bass range {96 Hz~160 Hz)
Usually, the listening room resonant frequency is in this
range.
To eliminate bass resonance, move this control down.
Mid-bass range (250 Hz~400 Hz)
This range is the basis of music. Whether the soundis rich
or not, depends on this range. When the playback sound
is Not so good, move this control up.
Mid range (625 H2~1 kHz)
When this control is moved up or down, the baritone or
soprano voice is emphasized/de-emphasized. This range
is related to the “presence” of music.
This range is related to stimulus and metallicsound.
When this range is well compensated, vivid sound can be
obtained.
High range (3.9 kHz~6.3 kHz)
This frequency range is related to the hardness of the
sound. when this control is moved up, strings or brass
instruments, such as flutes or piccolos, are emphasized.
When the control is moved down, the sound will be more
soothing. :
Super high range (10 kHz~16 kHz)
This frequency range is related to the details of the music.
When this control is moved up, super high frequency
instruments, such as triangles or cymbals, are empha-
sized, resulting in wide sound and echoes.
1-970 (En) 7
TS ATLAS ORG LAOTIAN COTTE NTN AOTEAROA NATIT TOE DEALER LO AA II ESERIES ELENA TEED REESE EE NAIR EDEL LALA AIL ALARA AEDES

Surround modes and presence modes
This system incorporates the following Surround functions which can provide the feeling of presence in a concert hall
or theater or the powerful effects of theater movies recorded with Dolby Surround audio. For details, refer to each
operation procedure on the following pages. For the detail settings, use the Remote control unit of main system (RC-
97M, RC-97LD).
Surround modes and presence modes
The presence effect can reproduce presence sound fields in seven modes (six modes for the U.K. and Europe) (Arena,
Jazz Club, Stadium, Discotheque, Game, Movie, KARAOKE (except for the U.K. and Europe)).
The presence effect can be further enhanced by connecting optional Surround rear speakers or omnidirectional
speakers.
F.2ch
Select this mode when only two speakers are connected. Seven (Six) kinds of presence effects can be reproduced.
(See Fig. 6)
F.4ch
Select this mode when the optional omnidirectional speakers are connected. Seven (Six) kinds of presence effects
can be reproduced similarly to F.2ch. The LINEAR ACOUSTIC control knob on the amplifier (A-87, A-97) is set
automatically according to the selected sound field. (See Fig. 5)
S.4ch
Select this mode when the optional omnidirectional speakers and optional surround rear speakers are connected.
Seven (Six) kind of presence effects can be reproduced similarly to F.4ch and F.2ch. (see Fig.4)
tn tie cen th hc na ba rnb th Stine ei aN
AI LINK equalizer effect
When the presence effect is turned ON, an equalizer pattern matching the presence sound field is created
automatically to enhance the presence effect.
ASFC (Acoustic Surround Field Control)
The expansion of sound can be controlled in 5 steps, allowing to obtain a presence effect that matches the taste of
the listener. (Refer to page 25.)
DOLBY PRO LOGIC SURROUND
When optional surround rear speakers are connected and video software tape or LD software disc marked
CYIBOLBY SURROUND] is played, a Dolby Surround effect similar to movie theaters can be enjoyed. (See Fig. 1 and
2.)
DOLBY 3 STEREO
Select this when the surround rear speakers are not used. This improves the positioning of the center sound. (See
Fig. 3.)
PRESENCE REC
When recording music on a tape, the presence effect can be recorded in stereo. This makes it possible to enjoythhe
presence sound through a headphone stereo or car stereo.
Manufactured under license from Dolby Laboratories Licensing Corporation.
“DOLBY”
and
the
double-D
symbol
Dd
are
trademarks
of
Dolby
Laboratories
Licensing
Corporation.
18 GE-970 ¢n)
When the presence and Dolby Surround modes are ON, the sound from the rear speaker (optional) does not stop even wa en
the speaker switch on the amplifier is set to OFF.

@ Speaker layout
DOLBY
PRO
LOGIC
mode
DOLBY
PRO
LOGIC
mode
DOLBY
3
STEREO
mode
(NORMAL,
WIDE)
(PHANTOM)
When
the
surround
rear
speakers
are
Standard
layout
When
the
center
speaker
is
not
used
not
used
Fig.
2
|
Fig.
3
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
SPEAKER
SPEAKER SPEAKER
SPEAKER
SPEAKER
SPEAKER
CENTER
SPEAKER
CENTER
SPEAKER
REAR
REAR
REAR REAR
SPEAKER
SPEAKER
SPEAKER
SPEAKER
DSP
S.4ch
mode
DSP
F.4ch
mode
DSP
F.2ch
mode
When
only
two
speakers
are
used
Fig. 6
SPEAKER
SPEAKER SPEAKER
aie
w@]
I
lowe
OMNIDIRECTIONAL
SPEAKER
OMNIDIRECTIONAL
SPEAKER
REAR REAR
SPEAKER SPEAKER
Setting
the
Delay
time
DOLBY
PRO
LOGIC
SURROUND
only
The
delay
time
should
be
adjusted
according
to
the
difference
between
the
distance
from
the
listening
position
to
the
front
speakers
and
the
distance
to
the
rear
(surround)
speakers.
Determine
the
appropriate
delay
time
using
the
formula
shown
below.
Relationship
between
the
position
of
the
rear
(surround)
speakers
and
the
delay
time
at
the
listening
position:
Delay time = 20 ms + 3 ms x (A-B) m
FRONT | FRONT
SPEAKER SPEAKER
——-CENTER SPEAKER —————>
CENTER SPEAKER
L~ | FRONT
SPEAKER
CENTER SPEAKER
Az4m A=3m
Approx. 17ms
Approx.
20ms
Approx.
23ms
bae3m
REAR
WPPEAKER
B=4m
REAR REAR
SPEAKER SPEAKER
REAR
SPEAKER
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DOLBY SURROUND
When video software carrying [X][basvsuscns] mark is played, this mode provides the similar Dolby Surround effect to
movie theaters.
M@ Dolby Surround field adjustment
1 Set the Dolby Surround mode.
Center mode indicator
2 Select the center mode.
MULT! CONTROL
sr
Every time the key is pressed,
the center mode is switched.
as oe |
¢ Refer to column “Center mode” below.
3 Adjust the volume balance.
@ Press the TEST TONE key.
Test Left Center Right
TONE
Noise-ike test tone moves across
the speakers every 1.5 seconds.
In NORMAL or WIDE BAND mode:
[oo eee Right ee]
In PHANTOM mode:
c Left-—# Right > Rear 7
Center mode
5 Set the delay time.
Remote control unit only
@ Adjust the volume balance.
Adjust the center level.
(4s8}+-— increases
OMNI
decreases A
Adjust the rear level.
increases
decreases
Adjust.
Adjust so that the test tone volumes are the same on all
speakers.
The level being adjusted is displayed.
The adjustment range is from -30 to +10 dB.
The center speaker level is stored in memory as the
common setting with “Dolby 3 Stereo” and the rear level
is stored as the common setting with "S.4ch”.
4 Stop generating the test tone.
TEST
TONE
Delay time indicator
(433 longer
DELAY TIME
/ASFC
shorter
Refer to the formula shown on page 19.
The delay time can be adjusted in the range from 16 to 3)
ms.
When one of the key is pressed, tht
delay time is displayed and varied in 2 ms steps per press
the key.
Once a delay time is set, it is automatically held in memory,
so the same delay time is displayed whenever Dolb;
Surround is switched ON later.
Select
one
of
the
following
center
modes
according
to
the
type
of
the
presence
speakers
in
your
system.
NORMAL:
Use
this
mode
with
a
center
speaker
of
a
compact
size.
WIDE
BAND:
Use
this
mode
with
a
center
speaker
of
a
medium
or
larger
size.
¢ If you cannot identify whether your center speaker is of the
meditum
or
compact
size,
try
both
the
NORMAL
and
WIDE
BAND mode and use the one that can provide better sound
Positioning.
20 GE-970 (En
PHANTOM: Use this mode when the center speaker is not used
¢ Even without the center speaker, the signal is pro
cessed in a simulated manner to ensure proper cente
image positioning and provide the enjoyment of Dolby
Surround.
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