Harman Kardon HK620 Owners Manual - Page 2

Hk620, Integrated, Amplifier

Page 2 highlights

HK620 INTEGRATED AMPLIFIER Congratulations on your choice of the Harman Kardon Integrated Amplifier. In order to obtain the best performance from this integrated amplifier, please be sure to read this owner's manual and use your integrated amplifier only in accordance with its instructions. The special features of this unit include: HCC (High Instantaneous Current Capability) The amplifier sections react rapidly to musical transients, providing the instantaneous current necessary to precisely drive and control nearly any loudspeaker system. Ultrawide Bandwidth The bandwidth of this unit is exceptionally wide and is independent of negative feedback. This improves transient accuracy and phase linearity. Low Negative Feedback This unit has been designed to have low distortion and wide bandwidth without high negative feedback. This further improves its dynamic accuracy. Discrete Component Circuitry In order to achieve the above goals, all discrete electronic circuitry has been employed. No available integrated circuits could provide this high level of performance. Sophisticated Electronic Protection Circuitry Harman Kardon's unique protection circuitry guards the amplifier from shortcircuited or damaged speakers and wires, without impairing sound quality by the use of current limiting or output relays. A A RISK OF ELECTRIC SHOCK CADOUNOTT OIPOENN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER -SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. A The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the userto the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT, ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTPODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND. 1

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HK620
INTEGRATED
AMPLIFIER
Congratulations
on
your
choice
of
the
Harman
Kardon
Integrated
Amplifier.
In
order
to
obtain
the
best
performance
from
this
integrated
amplifier,
please
be
sure
to
read
this
owner's
manual
and
use
your
integrated
amplifier
only
in
accordance
with
its
instructions.
The
special
features
of
this
unit
include:
HCC
(High
Instantaneous
Current
Capability)
The
amplifier
sections
react
rapidly
to
musical
transients,
providing
the
instantaneous
current
necessary
to
precisely
drive
and
control
nearly
any
loudspeaker
system.
Ultrawide
Bandwidth
The
bandwidth
of
this
unit
is
exceptional
ly
wide
and
is
independent
of
negative
feedback.
This
improves
transient
accuracy
and
phase
linearity.
Low
Negative
Feedback
This
unit
has
been
designed
to
have
low
distortion
and
wide
bandwidth
without
high
negative
feedback.
This
further
improves
its
dynamic
accuracy.
Discrete
Component
Circuitry
In
order
to
achieve
the
above
goals,
all
discrete
electronic
circuitry
has
been
employed.
No
available
integrated
circuits
could
provide
this
high
level
of
performance.
Sophisticated
Electronic
Protection
Circuitry
Harman
Kardon's
unique
protection
circuitry
guards
the
amplifier
from
short-
circuited
or
damaged
speakers
and
wires,
without
impairing
sound
qual
ity
by
the
use
of
current
limiting
or
output
relays.
A
CAUTION
A
RISK
OF
ELECTRIC
SHOCK
DO
NOT
OPEN
CAUTION:
TO
REDUCE
THE
RISK
OF
ELEC-
TRIC
SHOCK,
DO
NOT
REMOVE
COVER
(OR
BACK).
NO
USER
-SERVICEABLE
PARTS
IN-
SIDE.
REFER
SERVICING
TO
QUALIFIED
SERV-
ICE
PERSONNEL.
WARNING:
TO
REDUCE
THE
RISK
OF
FIRE
OR
ELECTRIC
SHOCK,
DO
NOT
EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE.
A
The
lightning
flash
with
arrowhead
symbol,
within
an
equilateral
triangle,
is
intended
to
alert
the
userto
the
pres-
ence
of
uninsulated
"dangerous
volt-
age"
within
the
product's
enclosure
that
may
be
of
sufficient
magnitude
to
constitute
a
risk
of
electric
shock
to
persons.
The
exclamation
point
within
an
equilateral
triangle
is
intended
to
alert
the
user
to the
presence
of
im-
portant
operating
and
maintenance
(servicing)
instructions
in
the
litera-
ture
accompanying
the
appliance.
CAUTION:
TO
PREVENT
ELECTRIC
SHOCK,
MATCH
WIDE
BLADE
OF
PLUG
TO
WIDE
SLOT,
FULLY
INSERT,
ATTENTION:
POUR
EVITER
LES
CHOCS
ELECTRIQUES,
INTPODUIRE
LA
LAME
LA
PLUS
LARGE
DE
LA
FICHE
DANS
LA
BORNE
CORRESPONDANTE
DE
LA
PRISE
ET
POUSSER
JUSQU'AU
FOND.
1