Kenwood KAC-PS621 User manual

KAC-PS621
Kenwood
Brand
Kenwood
Model
KAC-PS621
Type
User manual

Kenwood KAC-PS621 is a versatile and powerful stereo/bridgeable power amplifier that enhances your car audio experience with its advanced features and exceptional sound quality. With its 620 watts maximum power output, it delivers dynamic and immersive audio, perfect for driving enthusiasts who demand superior acoustics.

Kenwood KAC-PS621 is a versatile and powerful stereo/bridgeable power amplifier that enhances your car audio experience with its advanced features and exceptional sound quality. With its 620 watts maximum power output, it delivers dynamic and immersive audio, perfect for driving enthusiasts who demand superior acoustics.

KAC-X621
KAC-PS621
KAC-X521
KAC-PS521
STEREO/BRIDGEABLE POWER AMPLIFIER
~
page 2-9
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE STEREO/COMPATIBLE
~
page 10-17
MODE D'EMPLOI
ESTERO/AMPLIFICADOR
DE
POTENCIA CONECTABLE
~
pagina 18-25
MANUAL
DE
INSTRUCCIONES
KENWOOD CORPORATION
Take
the
time
to
read through this instruction manual. Familiarity
with
installation and operation procedures
will
help you obtain
the
best performance from your
new
power
amplifier.
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
KENWOOD dealer for information or service
on
the product.
Model KAC-X621/PS621/X521/PS521
Serial number - _
@
CHOl
ยฉB64-2795-00/00 (KV/EV)
Safetyprecautions
AWARNING
To
prevent injury or fire,
take
the following precautions:
โ€ข
When
extending the ignition, battery,
or
ground
wires,
make
sure
to
use
automotive-grade
wires
or
other
wires
with a8
mm'
(AWG
8)
or
more
to
prevent wire deterioration
and
damage to the wire coating.
โ€ข
To
prevent ashort circuit,
never
put
or
leave
any
metallic objects
(such
as
coins
or
metal tools) inside the unit.
โ€ขIfthe unit
starts
to emit
smoke
or
strange
smells,
turn off
the
power
immediately
and
consult your Kenwood
dealer.
โ€ข
Do
not touch the unit during
use
because
the
surface
ofthe unit becomes
hot
and
may
cause
burns
if
touched.
FCCWARNING
This
equipment
may
generate
or
use
radio frequency
energy.
Changes
or
modifications to
this
equipment
may
cause
harmful interference
unless
the
modifications
are
expressly
approved
in
the instruction
manual.
The
user
could
lose
the authority to operate this equipment if
an
unauthorized change
or
modification
is
made.
Cleaning the unit
Ifthe front
panel
gets dirty, turn offthe power
and
wipe
the
panel
with adry
silicon
cloth
or
soft
cloth.
ACAUTION
Do
not wipe the
panei
with a
hard
cloth
or
acloth dampened
by
volatile
solvents
such
as
paint thinner
and
alcohol.
They
can
scratch
the
surface
of
the
panel
and/or
cause
the indicator letters
to
peel
off.
To
prevent battery rise
When
the
unit
is
used
in
the
ACC
ON
position without turning the engine
ON,
it
depletes
the
battery.
Use
it after starting
the
engine.
Protection function
There
is
aProtection function installed
in
the unit to protect the unit
and
speakers
from various problems.
When
Protection
operates,
the display informs
you
of
the condition.
i'l~1\ยซj\."'Mi~Iยท'
โ€ขโ€ขโ€ข
a'IIi'~MII'~rM\~t'II~GII
โ€ขโ€ข
1
"[-01"
When
the
inside
of
the
unit
is
overheating.
Wiring
,
Take
the battery
wire
for
this
unit directly from the battery. If
it's
connected to
the
vehicle's
wiring
harness,
it
can
cause
blown
fuses
etc.
ยทIf abuzzing
noise
is
heard
from the
speakers
when the engine
is
running,
connect a
line
noise
filter (optional) to
each
of the battery
wire.
โ€ข
Do
not allow the
wire
to directly contact the edge
of
the iron plate
by
using
Grommets.
โ€ขConnect the ground wire to a
metal
part ofthe
car
chassis
that
acts
as
an
electrical ground
passing
electricity to
the
battery's negative 8terminal.
Do
not turn the power
on
if the ground wire
is
not connected.
,
Be
sure
to install aprotective
fuse
in
the power
cord
near
the battery.
The
protective
fuse
should
be
the
same
capacity
as
the unit's
fuse
capacity
or
somewhat
larger.
,
For
the power
cord
and
ground,
use
avehicle type (fireproof) power wring
cord
with acurrent capacity greater than the unit's
fuse
capacity.
(Use
apower
wiring
cord
with adiameter
of
8
mm'
(AWG
8)
or
greater.)
โ€ข
When
more
than one power amplifier
are
gOing
to
be
used,
use
apower
supply wiring wire
and
protective
fuse
ofgreater current-handling capacity
than the total maximum current drawn
by
each
amplifier.
ACAUTION
To
prevent damage to the machine, take the following
precautions:
โ€ข
Be
sure
the unit
is
connected
to
a
12V
DC
power supply with anegative
ground connection.
โ€ข
Do
not open the top
or
bottom
covers
ofthe unit.
โ€ข
Do
not install the unit
in
aspot
exposed
to direct sunlight
or
excessive
heat
or humidity.
Also
avoid
places
with too much dust
or
the possibility
of
water
splashing.
โ€ข
When
replacing a
fuse,
only
use
a
new
one with the prescribed
rating.
Using
a
fuse
with the wrong rating may
cause
your unit to malfunction.
,
To
prevent ashort circuit when replacing a
fuse,
first disconnect the wiring
harness.
Available Control Units:
A
KENWOOD's
LX-Bus
supporting Center Unit
released
in
2004
or
iater
can
control
this
unit.
The
operations
of
the
(LX)
AMP
Control
are
explained
in
the
Operation
Manual
ofthe Center
Unit.
NOTE
,
The
LX
AMP
and the sensor unit cannot
be
connected simultaneously.
You
must connect
any
of
them
at
atime.
NOTE
โ€ขIf
you
experience problems during installation, consult your Kenwood
dealer.
โ€ขIf the unit
does
not
seem
to
be
working right, consult your Kenwood
dealer.
"[-02"
''E-03''
"VOLT"
display
is
blinked.
When
the
unit
has
failed
and
direct
current
voltage
is
generated
to
the
speaker's
output.
NOTE
Turn
the
power
OFF
and
release
the
protection.
If
the
"[-02"
code
does
not
disappear,
contact
your
Kenwood
dealer.
When
the
speaker
cord
is
shorted.
When
the
speaker
output
is
in
contact
with
the
vehicle
ground.
When
voltage
gets
out
of
operation
range.
NOTE
This
Class
Bdigital apparatus complies with
Canadian
ICES-003.
This
Product
is
not installed
by
the manufacturer ofavehicle
on
the production
line,
nor
by
the
professional
importer of avehicle into
an
EU
Member
State.
2
English
Speaker Selection
,
The
rated
input power
of
the
speakers
that
are
going
to
be
connected should
be
greater than the maximum output power
(in
Watts)
ofthe amplifier.
Use
of
speakers
haVing
Input power
ratings
that
are
less
than the output power of
the amplifier will
cause
smoke
to
be
emitted
as
well
as
damage.
,
The
Impedance ofthe
speakers
that
are
gOing
to
be
connected should
be
20
or
greater
(for
stereo
connections),
or
40
or greater
(for
bridged connections).
When
more
than one
set
of
speakers
are
going to
be
used,
calculate the
combined impedance ofthe
speakers
and
then connect suitable
speakers
to
the
amplifier.
~
.----
..
_--
0:
4Q!
~:-----------------1
: : :
40
40:
e
'e'
'
-:
4Q:
-: :
:
~
โ€ข - - ~-- I
8Q-~
C~~bined
Impedance
Installation
Part name External View Number
of
Items
Self-tapping
screws
@)mn>
4
0S
x
18
mm)
Hexagon
socket
head
cap
screw
f4
M4x8mm)
Cover
~
1
Terminal
cover
(Power
terminal)
@1
Hexagon
Wrench
~
1
โ€ข
Do
not install
in
the below locations;
(Unstable
location,
In
alocation that interferes with driving,
In
alocation
that
gets
wet,
In
adusty location,
In
a
place
that
gets
hot,
In
a
place
that
gets
direct sunlight,
In
alocation that
gets
hit
by
hot
air)
โ€ข
Do
not install the unit under the
carpet.
Otherwise
heat
build-up
occurs
and
the unit
may
be
damaged.
โ€ข
Install
this unit
in
alocation which allows heat to
easily
dissipate.
Once
installed, do not
place
any
object
on
top ofthe unit.
โ€ข
The
surface
temperature ofthe amplifier will become hot during
use.
Install
the amplifier
in
a
place
where people,
resins,
and
other
substances
that
are
sensitive
to
heat
will not come into contact with
it.
โ€ข
This
unit
has
cooling
fans
to
decrease
the internal temperature.
Do
not
mount the unit
in
a
place
where the cooling
fan
and
ducts ofthe unit
are
blocked. Blocking
these
openings will inhibit the cooling
of
the internal
temperature
and
result
in
malfunction.
โ€ข
When
making ahole under a
seat,
inside the trunk,
or
somewhere
else
in
the vehicle,
check
that there
is
nothing
hazardous
on
the opposite
side
such
as
agasoline
tank,
brake
pipe,
or
wiring
harness,
and
be
careful
not
to
cause
scratches
or
other
damage.
โ€ข
Do
not install
near
the dashboard,
rear
tray,
or
air
bag
safety
parts.
โ€ข
The
installation
to
the vehicle should
securely
fasten
the unit to a
place
in
which it will not obstruct driving. Ifthe unit
comes
off
duE'
to a
shock
and
hits a
person
or
safety
part, it
may
cause
injury
or
an
accident.
โ€ขAfter installing the unit,
check
to
make
sure
that electrical equipment
such
as
the
brake
lamps,
turn
signal
lamps
and
windshield wipers operate
normally.
Instal/ationprocedure
Since
there
are
large
variety
of
settings
and
connections
possible
according to
applications,
read
the
instruction
manual
well
to
select
the proper setting
and
connection.
1.Remove
the ignition
key
and
disconnect the
negative
8terminal ofthe
battery to
prevent
short
circuits.
2.Set
the unit
according
to
the
intended
usage.
3.Connect
the
input
and
output
wires
ofthe
units.
4.Connect
the
speaker
wires.
5.Connect
the
power
wire,
power control
wire
and
grounding
wire
following this
order.
6.lnstall
the
installation fittings
in
the
unit.
7.Attach
the
unit.
8.lnstall
the terminal
cover.
9.Connect
the
negative
8terminal of
the
battery.
ACAUTION
Accessories
E E
E E
~
re
Self-tapping
screw
(05
x
18
mm)
Hexagon
Wrench
Duct
Installation
board,
etc.
(thickness:
15
mm
or
more)
English
3
Connection I*
Commercially
available
parts
I
Right
input
RCA
cable*
Lead
terminal*
l_iiiiiiiiii;;iยฐ~r1
Right
speaker
8~
8r1
\'.!!!!!!!!!!!!~O~~
Left
speaker
RCA
cable
ground terminal
....
-:-:":.-
โ€ขBridgedConnections
~~~
Sp,,",'BMg,dl
CENTER
UNIT
(CD
receiver,
etc.)
Power
control
wire
I
Ground
wire*
Battery
Protective
Fuse*
oIf sound
is
not output normally, immediately
turn power off
and
check
connections.
o
Be
sure
to turn the power offbefore changing
the setting of
any
switch.
oIfthe
fuse
blows,
check
wires
for
shorts,
then
replace
the
fuse
with
one
ofthe
same
rating.
โ€ข
Check
that
no
unconnected
wires
or
connectors
are
touching the
car
body.
Do
not
remove
caps
from unconnected
wires
or
connectors to
prevent short circuits.
oConnect the
speaker
wires
to
appropriate
speaker
connectors
separately.
Sharing
the
negative wire ofthe
speaker
or
grounding
speaker
wires
to the metal body
of
the
car
can
cause
this unit to
fail.
oAfter installation,
check
that the
brake
lamps,
winkers,
and
wipers work properly.
IAWARNING I
To
prevent
fire
caused
by
ashort
in
the wiring,
connect afusible link
or
breaker
nearby
the
battery's positive terminal.
ACAUTION
โ€ข
LX-Bus
connection
ACAUTION
โ€ข
Do
not connect 2
Master
amplifiers to the
Center
Unit.
If
done,
you
cannot control
all
amplifiers connected to the Center Unit.
โ€ข
The
LX
AMP
and
the
sensor
unit cannot
be
connected
simultaneously.
You
must
connect
any
ofthem
at
atime.
NOTE
โ€ข
The
total length of
S-video
cables
you
can
connect
is
14
meters
(46
ft) maximum. Ifthe
cable
length
exceeds
this limit,
you
cannot
control
amps
from the
Center
Unit.
โ€ขIf
you
assign
the
same
ID
number to multiple amplifiers, they
malfunction when
you
operate
any
of
them from the
Center
Unit.
ยท
If
you
assign
ID
number
"8"
or
"9"
to a
Slave
amplifier, it
is
not
recognized
by
the
Center
Unit.
Set
the
ID
number ofthe
Master
amplifier to
"0".
You
can
connect up to 7
Slave
amplifiers.
Assign
them
ID
numbers
"1"
to
"7"
and
do not duplicate
them.
Control
cable
Iยง:J-----
..
(option)
o
To
KENWOOD
disc
changerl
External
optional
accessory
I
ExtenSion
wlre* r
CENTER
UNIT
Power
control wire
Master
amplifier
Slave
amplifier 1
Not
more
than
14m
(46
ft)
r
Slave
amplifier 7
4
English
Controls
KAC-X6211
;J=;;=L-....J.KAC_PS621
KAC-X521/
KAC-PS521
r-~-~mn
!
~
ยฉ\ID
!
โ€ขFlJSยฃ(:lOoo\:><?I:
'-----IE:::
CD
Fuse (KAC-X621/P5621 :
25
Ax
3,
KAC-X5211P5521 :
30
Ax2)
@
Battery
terminal
@Ground
terminal
@Powercontrol
terminal
Controls
the
unit
ON/OFF.
NOTE
Controls
the unit
power.
Be
sure
to connect itwith
all
the
systems.
ยฎ
Speaker
output
terminals
โ€ขStereo Connections:
When
you
wish
to
use
the unit
as
a
stereo
amplifier,
stereo
connections
are
used.
The
speakers
to
be
connected
should
have
an
impedance
of
20
or
greater.
When
multiple
speakers
are
to
be
connected,
ensure
that
the
combined
impedance
is
20
or
greater
for
each
channel.
โ€ขBridged Connections:
When
you
wish
to
use
the unit
as
ahigh-output
monaural
amplifier,
bridged connections
are
used.
(Make
connections
to
the
LEFT
channel
0
and
the
RIGHT
channel
e
SPEAKER
OUTPUT
terminals.)
The
speakers
to
be
connected
should
have
an
impedance
of
40
or
greater.
When
multiple
speakers
are
to
be
connected,
ensure
that
the
combined
impedance
is
40
or
greater.
"CAUTION
I
The
rated
input of
the
speakers
should
be
no
less
than
the
maximum
output
ofthe
amplifier.
Otherwise malfunction
may
result.
ยฎ
RCA
cable
ground
lead
terminal
When
using
an
RCA
cable
with aground
lead
attached,
connect
the
ground
lead
to
this
terminal.
(2)
10 NUMBER switch
Sets
an
amp
identification number
(ID)
to
be
used
for
amplifier control
from
the
Center
Unit.
Assign
ID
Number
"0"
to
an
amplifier
when
you
use
it
as
the
Master
amplifier.
Assign
ID
Numbers
"1"
to
"7"
to
amplifiers
when
you
use
them
as
Slave
amplifiers.
Do
not duplicate
these
numbers.
I
NOTE
I
After
you
have
changed
ID
numbers
of
amplifiers,
turn Offthe
POWER
switch
ofthe
Center
Unit
and
turn it
On
again.
ยฎ
TO
H/U
terminal
After
you
have
set
the
Master
amplifier,
connect it
to
the
Center
Unit.
ยฎREMOTEterminals
Used
to
connect
to
Slave
amplifiers.
@
RESET
button
Resets
the
microprocessor
ofthe unit.
I
NOTE
I
The
values
you
have
set
with the Amplifier
Control
are
NOT
reset.
ยฎLINE
IN
termintll
@LINE
OUT
terminal
The
signal
that's
input
from
the line input
terminal
is
output.
@Powerindicator
lights
when
the
POWER
switch
is
turned
On.
The
indicator
flashes
several
seconds
when
the
POWER
switch
is
turned
On
or
when
the
Protection
function
is
activated.
@LPFFREQUENCYcontrol
Sets
the cutoff
frequency
when
the
"FILTER"
switch
is
set
to
"LPF".
@HPFFREQUENCYcontrol
Sets
the
cutoff
frequency
when
the
"FILTER"
switch
is
set
to
"HPF".
ยฎ
FILTER
switch
This
switch
allows
to
apply
high-pass
or
low-pass
filtering to the
speaker
outputs.
โ€ขHPF (High-Pass Filter) position:
The
filter outputs
the
band
ofhigher
frequencies
than
the frequency
set
with
the
"HPF
FREQUENCY"
control.
โ€ขOFF position:
The
entire bandwidth
is
output without filtering.
โ€ข
LPF
(Low-Pass Filter) position:
The
filter outputs the
band
of
lower
frequencies
than
the frequency
set
with the
"LPF
FREQUENCY"
control.
The
speaker
output
is
automatically switched to
monaural
(L
+R).
@
AMP
CONT
(amplifier
control) switch
Used
to
bypass
the circuit
when
you
do not control the
sound
with the
Amplifier
Control.
โ€ขON position:
Allows
you
to
control
the
sound
with the Amplifier
Control.
โ€ขOFF position:
Bypasses
the Amplifier Control circuit.
I
NOTE
I
Amplifier control
is
possible
even
while
OFF.
ยฎISF (infrasonic filter) switch
When
this
switch
is
"ON",
the
frequencies
which
are
below the audible
range
and
therefore
inaudible
are
cut off
so
that
the
quality ofthe audible
frequencies
can
be
improved.
@OPERATIONswitch
This
switch
is
used
to
select
the operation
mode
of
the
amplifier.
โ€ข
STEREO
position:
The
amplifier
can
be
used
as
a
stereo
amplifier.
โ€ข
MONO
(Lch) position:
Amplifies
the
signal
inputfrom the left
side
only.
Set
to
this
position
and
make
bridged connections to
use
as
ahigh-power
monaural
amplifier.
(The
input right
signal
is
not output.)
@INPUTSENSITIVITYcontrol
Set
this
control
according
to
the
pre-output
level
ofthe center unit
connected with
this
unit.
NOTE
For
the
pre-output
level,
refer
to the
"Specifications"
in
the instruction
manual
ofthe center unit.
English
5
..fEEplifierControl
System
/
:~
"~t;~::
~1,':*,,:.li:~~:i:j
.
__
..
,.,~
'-~
..
~'~
......
:
."
: -.
=:::
'."
."
..
".
."
ยทro
"'
.....
.,,""
"
......
"'
..
..;,
........
...,
r,::::::::::::::::~~t-Indl(ator
,
..
t..,
~
)1
I
'~[!'J'
~-""';-+-:--MENU
~~~~II.II.t.[D.111
I
โ€ขโ€ข
-._-
~I;;~;;;;;"'-+-~/~
Display mode
You
can
set
up the display items
as
follows:
1Enter Menumode
Press
the [MENU] button.
"VOLT"/"CURR"/"TEMP"/"FAN"
is
displayed.
2Select adisplay
item
Press
the [
....
]
or
[~
]button.
The
display
items
are
switched
in
the following
sequence.
&Cas","M!!
j
jiii'
1161EI6
"I
"VOLT"
Indicates
the
source
voltage
(V).
"CURR"
Indicates
the
current
consumption
(A).
"TEMP"
Indicates
the
internal
temperature
("Fro.
"FAN"
Indicates
the
rotation
speed
of
the
cooling
fan
in
3
steps:
"FAST",
"SLOW"
or
"OFF".
3Exit Menu mode
Press
the [MENU]
button
for at least 1second.
INOTE I
When
the
internal temperature
is
-22'F/-30'C or
less,
"-22F"/"-30C"
is
displayed.
Separate Amp Control
You
can
control sounds using the Amplifier Control function
of
the unit.
1Enter Menu mode
Press
the [MENU] button.
2Select
the
Menu
item
Press
the [MENU] button.
The
setup
items
are
displayed
approximately 1
second
first,
then the
set
values
are
displayed.
3Adjust
the
Menu
item
Press
the [
....
]
or
[~]
button.
The
setup
items
and
set
values
are
switched
as
follows.
1l'
...
!IIM!!'!'...,
.........
"VOLT"I"CURR"I"TEMP"I"FAN"
For
the
operation
method
referro
'Display
mode'
4Exit Menu mode
Press
the [MENU]
button
for
at
least 1second.
INOTE I
When
you
hold down the
[~]
button 3or
more
seconds
during
10
number
display
("AMP"),
message
"MEMO"
is
displayed
and
you
can
register
the
values
you
have
set
with
the
Amplifier Control.
To
call
the Amplifier
Control's
values,
hold down the [
....
]button 3or
more
seconds
during
10
number display'
("AMP").
Then,
you
can
recall
the
value
when
message
"LOAD"
is
displayed.
Default
Resets
all
values
you
have
set
to the initial (default)
values.
1Enter Menu mode
Press
the
[MENU] button.
ยท2 Select Default mode
Press
the [MENU] button.
Select
the
"DEFA"
display.
3Resets
the
value
to
its
default
Press
the
[~]
button
for
at
least 2seconds.
Message
,,----"
is
displayed,
and
the
value
is
initialized.
4Exit Menu mode
Press
the [MENU]
button
for
at
least 1second.
INOTE I
Volume
offset
value
can
not
be
initialized.
Display Demonstration
The
"VOLT"I"CURR"I"TEMP"I"FAN"
items
are
displayed repeatedly.
Press
the [MENU] button for
at
least 2seconds.
The
indicator
flashes
in
the
Demonstration
mode.
Canceling
the
Demonstration
mode
Press
any
button
to
cancel the Demonstration mode.
"BASS"
60/801100/200
(Hz)
Bass
Center
Freguency
"BA
G"
B-1S
-
B+
15
(dB)
Basslevel
"BA
0"
01.00/01,25/01.50/02.00
Bass
0
Factor
"
EXT"
ONIOFF
When
the
bass
extend
is
set
to
ON,
low
frequency
response
is
extended
by
20%.
"TREB"
10/12115/17
(kHz)
Treble
Center
Freguency
"TRG"
T-1S
-
T+
15
(dB)
Treble
level
"VOL"
-20-0
(dB)
Volume
offset
"TEMP"
FAHR
(Fahrenheit)
or
CELS
(Centigrade)
The
Fahrenheit
or
Centigrade
temperature
unit
can
be
selected
for
the
Display
mode.
"DEFA"
For
the
operation
method
refer
to
'Default'
"AMP"
0-7
The
ID
Number
you
have
assigned
is
displayed.
6
English
Control an Amp from Center
Unit
You
can
control
the
sound
by
controlling amplifiers from
the
Center Unit.
1
Enter
AMP
Control
mode
Select
the
AMP Control
mode
by
following
the
'AMP
Control'
procedure
given
on
the
Operation
Manual
of
the
Center
Unit.
I
NOTE
I
Use
the
set
item and value operation buttons
by
following the instructions
given on the Operation Manual
of
the Center Unit.
2Select
an
amp
number
to
operate
Operate
the
desired set
item
with
the
Center
Unit.
Select the
"AMP
NO"j"AMP
CONTROL
NO"
display.
I
.NOTEI
When the Center Unit
is
in the
STANDBY
mode,
message
"AMP
OFF"
is
displayed and you cannot operate the
set
items.
3Set
an
10
number
of
Amp
to
operate
Set an amp's
10
number
on
the
Center
Unit.
You
can
select
an
ID
number
of
"0"
to
"7"
of
connected
amps.
4Select
the
AMP
Control
item
for
adjustment
Select
the
desired set
item
on
the
Center
Unit.
5
Adjust
the
AMP
Control
item
You
can set avalue
of
each
item
on
the
Center Unit.
The
set
items and their values
are
switched and displayed
as
follows.
_I;
...
'
.............
"VOLT"/"CURR"/"TEMP"/"FAN"
The
amp
state
is
displayed.
"VOLT"
Indicates
the
source
voltage
(V).
"CURR"
Indicates
the
current
consumption
(A).
"TEMP"
Indicates
the
internal
temperature
nrC).
"FAN"
Indicates
the
rotation
speed
of
the
cooling
fan
in
3
steps:
"FAST'~
"SLOW"
or
"OFF".
Messages
that
may
be
displayed on
the
Center Unit
When you are selecting an
item
with
the
Amp
Control, an error status
of
the
amplifier
is
displayed on
theCenter
Unit.
1liii'
11_llb
....
!1
-j
"AMP
x
E-01
"/"AMP
x
COND
E-Ol"
When
the
inside
of
the
unit
is
overheating.
When
the
unit
has
failed
and
direct
current
voltage
is
generated
to
the
spea
ker's
output.
"AMP
x
E-02"/"AMP
x
COND
E-02"
I
NOTE
I
Turn
the
POWER
switch
Off
and
release
the
protection.
If
the
error
message
continues,
consult
to
the
KENWOOD's
dealership.
"AMP
x
E-03"/"AMP
x
COND
E-03''
When
the
speaker
cord
is
shorted.
When
the
speaker
output
is
in
contact
with
the
vehicle
ground.
"AMP
OFF"
When
you
use
the
Amp
Control
in
the
Standby
mode.
NOTE
Number "x" on the display indicates the
amp's
ID
number.
"BAS
F"
I"BASS
FREO"
"BAS
G"/"BASS
GAIN"
"0
FA"
/"0
FACTOR"
"EXT"I"BASS
EXT"
"TRE
F"
/"TREB
FREO"
"TRE
G"/"TREB
GAIN"
"VO~'
I"VOL
OFFSET"
"AMP
NO"I
"AMP
CONTROL
NO"
60/80/100/200
(Hz)
-15
-,
+15
(dB)
01.00/01.25/01.50/02.00
ONIOFF
10112/15/17
(kHz)
-15-+15
(dB)
-20-0
(dBl
0-7
Bass
Center
Frequency
Bass
level
Bass
o
Factor
When
the
bass
extend
is
set
to
ON,
low
frequency
response
is
extended
by
20%.
Treble
Center
Frequency
Treble
level
Volume
offset
Select
an
10
number
of
the
amp
you
use.
6
Exit
AMP
Control
mode
Releases
the
Amp
Control
mode
by
the
Center
Unit.
I
NOTE
I
When you
have
controlled the
bass
or treble
of
the sound using the
Equalizer or
DSP
function
of
the Center Unit, and when you amplify the
same
frequency
as
that controlled by the Amplifier Control, the sound may
be
distorted due
to
an
input overfiow.
English
7
System
examp_le_s
_
โ€ข2-channelsystem โ€ขHigh-power2-channelsubwoofersystem
I
r-q
0
Dg~
Left
speaker
CENTER
UNIT
'-~.
__
--'-e
. .
me;
Right
speaker
Left
subwoofer
(Bridged)
Right
subwoofer
(Bridged)
[MONO(lch
1
~
tSTEREO
FlL.TER
AMPCONT
ISF
OPERATION
DD
OPERA.TION
[MONOlLch
l
~
[STEREO
FILTER
,t..MPCONT ISF
:~.
7O~r(MI~~:~~)
I
FRE~:CYlHzlll
FREQ~:CY(Hz}11
SEN~%~lhM
I
โ€ข2-channel+Subwoofer system
L-.-----...ll
Left
speaker
(High
pass)
L-.-----...ll
Right
speaker
(High
pass)
Subwoofer
(L+R)
(Bridged)
:~~
7Oer:~::
50
200
50 200 (MIN}5
O.2{MAX)
[FREO~~cY(Hyll
FREa~:CY(HZII
[
SEN::~'hM
I
OPERATION
[MONO{Lch}
~
t
STEREO
FILTER
AMP
CONT
ISF
(HPF
rON
[ON
~-OFF
~ ~
D
LF
LFF
L"
OPERATION
[MONOILeIl)
~
tSTEREO
โ€ขTri-mode
(High
pass)
::m
7'~"O
:~::
50 200 60 200
(M1N)5
O.2(MAX)
I
FRE~~~cy(Hz)ll FREa~:cY(Hz)ll
SEN:tmltvM
I
Coli
(L):
Passes
low
frequencies
and
blocks
high
frequencies.
(Low
pass)
Capacitor (C):
Passes
high
frequencies
and
blocks
low
frequencies.
(High
pass)
fc=Cut
of
Frequency
(Hz)
R=Speaker
Impedance
(0)
C=
159000
(
F)
fc
xR
~
L=
159
xR
(mH)
fc
Crossover
Frequ.;.e
__
n~cy'_
_
:ยฑiIA:!Ja
Frequency
OdB
-3
dB
Principle ofTri-mode
Method of
frequency
band
division
using
a
coil
and
capacitor
..
in
case
of6dB/oct.
slope.
Example:
When
it
is
required to
set
a
crossover
frequency
of
120
Hz
using
speakers
with
an
impedance
of
4
ohms.
Prepare
commercially-available coil
and
capacitor with the
closest
ratings to the
results
calculated from the formula
above.
The
capacitor rating should
be
as
close
as
possible
to
331.25
(~F)
and
the coil rating should
be
as
close
as
possible to
5.3
(mH).
ACAUTION
OPERATION
(MONO(l..ch
l
~
LTEREO
FILTER
AMPCONT
ISF
If
you
wish
to
bridge-connect a
speaker,
the
speaker
impedance must
be
no
less
than 4
ohms.
Connecting a
speaker
with
an
impedance lower than 4ohms
may
damage
the unit.
Be
sure
to connect capacitors to
speakers
to which high frequencies will
be
passed.
Failure
to
do
so
will
result
in
adrop ofthe combined impedance with the subwoofer.
Ensure
that the withstand voltage
and
current ratings ofthe capacitors
(C)
and
coils
(L)
are
sufficient.
8
English
Troubleshooting Guide
What
mightappear
to
be
amalfunction
in
your
unitmayjust
be
the
result
of
slight misoperation
or
miswiring.
Before
calling
service,
first
check
the
following
table
for
possible
problems.
Nosound. โ€ขInput
(or
output)
cables
are
disconnected. โ€ขConnect the input
(or
output)
cables.
(No sound from
one
side.) โ€ขProtection circuit
may
be
activated.
โ€ข
Check
connections
by
referring
to "Protection function".
(Blown fuse.) โ€ข
Volume
is
too high. โ€ข
Replace
the
fuse
and
use
lower
volume.
โ€ข
The
speaker
cord
is
shorted.
โ€ขAfter
check
the
speaker
cord
and
fixing the
cause
of
the
short,
reolace
the
fuse.
The
output
level
is
too
small โ€ข
The
input sensitivity adjusting control
is
not
set
to
the
correct โ€ข
Adjust
the
control correctly referring to
"Controls".
(or too
larael.
oosition.
The sound
quality
is
bad. โ€ข
The
speakers
wire
are
connected with wrong
(ยฑJ
/8polarity. โ€ขConnect them properly checking the
(ยฑJ
/ 8 ofthe terminals
(The sound
is
distorted.)
and
wires
well.
โ€ข A
speaker
wire
is
pinched
by
a
screw
in
the
car
body.
โ€ขConnect the
speaker
wire
again
so
that it
is
not pinched
by
anything.
โ€ข
The
switches
mav
be
set
imorooerlv. โ€ข
Set
switches
orooerlv
bv
referrino
to
"Svstem
examoles'.
The sound does
not
change โ€ข
The
AMP
CONT
has
been
turned
"OFF'~
โ€ข
Turn
the
AMP
CONT
"ON".
even when you have changed โ€ข
The
filtered
band
has
been
controlled
by
the Amplifier
Control.
โ€ข
Turn
the
filter
Off.
it
with
the
AmDlifier Control.
The set value cannot be โ€ข
The
AMP
Control
of
the
Center
Unit
is
being
used.
โ€ข
Release
the
AMP
Control mode
of
the
Center
Unit.
changed by
the
Amplifier
Control
of
the
unit.
The Amplifier Control cannot โ€ข
An
incorrect
10
number
is
used
for
the
Master
amplifier.
โ€ข
Always
set
the
10
number ofthe
Master
amplifier to
"0".
be
operated from
the
Center โ€ข
The
10
number
of
the
amplifier
has
been
changed.
โ€ขAfter
you
have
changed the
10
number
of
an
amplifier, turn Off
Unit. the
POWER
switch
ofthe
Center
Unit
first
then turn it
On
aaain.
2J?ecifications
Specifications subject
to
change
without
notice.
KAC-X521
................
179W 165W
....................................
..
305
W
254
W
(1
kHz)
........................
..
612W
505Wx
1
..
191
W170W
...........
under
0.3
dB
(40)
under
0.3
dB
(40)
..
83
dBA
(W/4
0)
81
dBA
(W/4 0)
..
83
dBA
(W/4 0)
82
dBA
(W/4
0)
....................................
0.2
V
0.2
V
..
..5.0
V5.0V
..
10kO 10kO
..
50
-
200
Hz
(variable)
50
-
200
Hz
(variable)
..
50
-
200
Hz
(variable)
50
-
200
Hz
(variable)
..
15
Hz
15
Hz
......................................................
5
Hz
-
70
kHz
5
Hz
-
70
kHz
Audio Section KAC-X621
RMS
Power
Output
(+B
=
14.4
V,
CEA-2006)
Normal
(4
0/2ch)
(1.0
%
THO+N)
(2
0/2ch)
(1.0
%
THO+N)
...
Bridged
(40)
(1.0
%
THO+N).............
.. ..
Oynamic
Power
(+B
=
14.4
V,
CEA-2006)
.
Output Regulation
(+B
=
14.4
V,
CEA-2006)
..
Signal
to
Noise
Ratio
(CEA-2006)
, .
(Bypass)
KEA-2006)
Sensitivity (rated output)
(MAX.)
..
.
(MIN.)
.
Input Impedance
.....
Low
Pass
Filter Frequency
(24
dB/oct.)
..
High
Pass
Filter Frequency
(12
dB/oct.)
..
Infrasonic Filter Frequency
(24
dB/oct.)
Frequency
Response
(+0,
-3
dB)
..
............
100
W x 2
80
W x 2
..
200
W x 2
160
W x 2
..
.400
W x 1
320
W x 1
.150W x 2
............................................................
150W x 2
......................................
300W x 2
..........................
.600W
xl
.........................................
0.2
V
........................................
.5.0
V
.......
10
kO
............................
.50
...
200
Hz
(variable)
.......................................
50
-
200
Hz
(variable)
...................................................
15
Hz
.........................
5
Hz
-
70
kHz
.........................
..
...
105
dB
Audio Section KAC-PS621
Max
Power
Output......
..
1200
W
Rated
Power
Output
(+B
=
12.0
V)
Normal
(40)
(20
Hz
-
20
kHz,
0.05
%
THO)
.
(20)
(1
kHz,
0.5
%
THO)
..
Bridged
(40)
(1
kHz,
0.5
%
THO).
.
Rated
Power
Output
(+B
=
14.4
V)
Normal
(40)
(20
Hz
-
20
kHz,
0.05
%
THO)
..
(40)
(OIN
:
45324
,
+B
=
14.4V)
..
(2
0)
(1
kHz,
0.5
%
THO)
.
Bridged
(40)
(1
kHz,
0.5
%
THO)
Sensitivity (rated output)
(MAX.)
.
(MIN.)
.
Input Impedance
.. ..
Low
Pass
Filter Frequency
(24
dB/oct.) .
High
Pass
Filter Frequency
(12
dB/oct.) .
Infrasonic Filter Frequency
(24
dB/oct.)
..
Frequency
Response
(+0,
-3
dB)...
..
.
Signal
to
Noise
Ratio
.........
KAC-PS521
1000W .
125
W x 2
125
W x 2
250W x 2
500W
xl
0.2V
5.0
V
10
kO
50
-
200
Hz
(variable
50
-
200
Hz
(variable)
15
Hz
5
Hz;...
70
kHz
105
dB
Amplifier Control Section (EQ) KAC-X621/PS621
Bass
frequency.........
..
60/80/
100/
200
Hz
Bass
level........
.
..
-15
- +
15
dB
Bass
Qfactor...
..
1.00
/1.25/ 1.50/2.00
Treble
frequency..
..
10
/12/15/17
kHz
Treble
level.....
..
-15
- +
15
dB
KAC-X521/PS521
60
/
80
/
100
1200
Hz
-15
~
+15
dB
1.00/
1.25
/1.50/
2.00
10
!
12
/
15
/17kHz
-15
-
+15
dB
Weight
..
Installation
Size
(W
x H x 0)
..
General KAC-X621/PS621
Operating Voltage
..
14.4
V
(11
-
16
Vallowable)
Current Consumption
(+B
=
12.0
V,
1
kHz,
10
%
THO,
4
0).....
..
,.40 A
Dimensions
(W
x H x 0)
..
446
x
61
x
259.5
mm
17-5/8 x2-3/8 x10-3/16 inch
....................
446
x
61
x
265
mm
17-5/8 x2-3/8 x10-3/8 inch
.....
4.42
kg
(9.74
Ibs)
KAC-X521/PS521
14.4
V
(11
-
16
Vallowable)
37
A
386
x
61
x
259.5
mm
15-3/16 x2-3/8 x10-3/16 inch
386
x
61
x
265
mm
15-3/16 x2-3/8 x10-3/8 inch
3.83
kg
(8.44
Ibs)
English
9
KENWOOD
This
warranty
will
be
honored
only
in
the
U.S.A.
KENWOOD LIMITED WARRANTY
FOR
CAR STEREO COMPONENTS
HOW
LONG IS THE WARRANTY
Kenwood
U.S.A.
Corporation
("Kenwood")
warrants
this
product
for
a
period
of
one
(1)
year
from
the
date
of
original
purchase.
WHAT
IS COVERED
AND
WHAT
IS
NOT
COVERED
Except
as
specified
below,
this
warranty
covers
all
defects
in
material
and
workmanship
in
Kenwood
car
stereo
components.
The
following
are
not
covered
by
the
warranty:
1.
Any
product
which
is
not
distributed
in
the
U.S.A.
by
Kenwood
or
which
is
not
purchased
in
the
U.S.A.
from
an
authorized
Kenwood
car stereo
dealer
or
an
automobile
dealer, unless
the
product
is purchased
through
the
U.S.A
Military
Exchange Service.
2.
Any
product
on
which
the
serial
number
has been defaced,
modified
or
removed.
3. Damage,
deterioration
or
malfunction
resulting
from:
a.
Any
shipment
of
the
product
(claims
must
be presented
to
the
carrier).
b.
Installation
or
removal
of
the
product.
c.
Accident,
acts
of
nature,
misuse,
abuse,
neglect,
unauthorized
product
modification
or
failure
to
follow
instructions
supplied
with
the
product.
d. Repair
or
attempted
repair
by
anyone
not
authorized
by
Kenwood.
e.
Any
other
cause
which
does
not
relate
to
a
product
defect.
WHO
IS PROTECTED
This
warranty
is enforceable
only
by
the
original
purchaser.
WHAT
WE WILL PAY
FOR
We
will
pay
for
all
labor
and
material
expenses
for
covered items. Payment
of
shipping
charges is discussed in the
next
section
of
this
warranty.
HOW TO OBTAIN WARRANTY SERVICE
If
your
KENWOOD
product
ever needs service:
1.
Take
or
ship
it
to
any
KENWOOD
Authorized
Service Center in
the
U.S.A.
along
with
&
complete
description
of
the
problem. (ifyou are uncertain
as
to
whether
aService Center is authorized, please call1-800-KENWOOD
for
the nearest
Service Center. 1-800-536-9663).
2.
Although
you
must
pay any
shipping
charges
if it
is necessary
to
ship
the
product
for
warranty
service,
we
will
pay
the
return
shipping
charges
if
the
repairs are covered
by
the
warranty
within
the
United
States.
3.
Whenever
your
units
are taken
or
sent
for
warranty
service,
you
must
include a
copy
of
the
original
dated sales receipt
as
proof
of
warranty
coverage.
LIMITATION
OF
IMPLIED WARRANTIES
ALL
IMPLIED WARRANTIES, INCLUDING WARRANTIES
OF
MERCHANTABILITY
AND
FITNESS
FOR
APARTICULAR
PURPOSE,
ARE
LIMITED IN DURATION TO THE LENGTH
OF
THIS WARRANTY.
EXCLUSION
OF
DAMAGES
KENWOOD'S LIABILITY
FOR
ANY
DEFECTIVE PRODUCT
IS
LIMITED TO
THE
REPAIR
OR
REPLACEMENT
OF
THE
PRODUCT
AT
OUR OPTION. KENWOOD SHALL NOT
BE
LIABLE
FOR:
1.
INSTALLATION
OR
REMOVAL CHARGES, DAMAGE TO OTHER PROPERTY CAUSED BY
ANY
DEFECTS
IN
KENWOOD
CAR
STEREO COMPONENTS, DAMAGES BASED UPON INCONVENIENCE, LOSS
OF
USE
OF
THE PRODUCT;
OR
2.
ANY
OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL
OR
OTHERWISE.
SOME STATES
DO
NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND/OR
DO
NOT ALLOW
THE EXCLUSION
OR
LIMITATION
OF
INCIDENTAL
OR
CONSEQUENTIAL DAMAGES, SO
THE
ABOVE LIMITATIONS AND
EXCLUSIONS
MAY
NOT APPLY TO YOU.
This
warranty
gives
you
specific legal rights, and
you
may
also have
other
rights
which
vary
from
state
to
state.
If
a
problem
develops
during
or
after
the
Limited
Warranty
Period,
or
if
you
have any
questions
regarding the
operation
of
the
product,
you
should
contact
your
KENWOOD Authorized Dealer
or
Authorized Service Center.
If
the
problem
or
your
question
is
not
handled
to
your
satisfaction,
please
contact
our
Customer
Relations
Department
at
the
address
listed
below:
KENWOOD
USA
CORPORATION
P.O
Box
22745, 2201 East
Dominguez
Street,
Long
Beach, CA 90801-5745
Tel: (310) 639ยท5300
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12

Kenwood KAC-PS621 User manual

KAC-PS621
Kenwood
Brand
Kenwood
Model
KAC-PS621
Type
User manual

Kenwood KAC-PS621 is a versatile and powerful stereo/bridgeable power amplifier that enhances your car audio experience with its advanced features and exceptional sound quality. With its 620 watts maximum power output, it delivers dynamic and immersive audio, perfect for driving enthusiasts who demand superior acoustics.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents