Harman Kardon PA2400 Owners Manual - Page 6

Connect, follows, Setting, Speaker, Operating, Switches, Bridged, Operation, Warranty, After,

Page 6 highlights

Connect as follows: 1. Remove about 3/4 inch (20mm) of insulation from the end of each wire and twist the strands of each conductor. 2. After making sure of the correct channel and polarity, loosen the SPEAKER terminal knob and insert the conductor directly into the recess at the upper-left of the terminal. Then tighten the terminal knob, and the end of speaker wire is automatically wound around the terminal. 0 Setting the Speaker Operating Mode Switches These switches, located in the top right corner of the back panel, optimizes the amplifier for the best possible operation with your speakers. It is extremely important that you set these switches before playing your speakers. First, determine the impedance of your speakers. The impedance may be noted on the back of the speaker or in the owner's manual. If not, call the dealer or manufacturer to find out the impedance. If you are using set of 8 ohm speakers, set both of the "Speaker Operating Mode" switches to 852 position. In all other cases, use the 452 positions. If you are in doubt about the impedance of your speakers, use the 4Q positions, since the power amplifier runs cooler in this mode. Having these switches set to 8Q if you are using 4 ohm or 6 ohm speakers may result in overheating of the amplifier or failure of an internal fuse. Bridged Mono Operation This feature permits both amplifier channels to drive one 852 loudspeaker. To operate the amplifier in this way, set both of the "Speaker Operating Mode" switches to the 4Q positions, set the "Bridged Mono" switch in the "On" position and connect one channel of the preamplifier output to the amplifier's left input jack. Then connect the amplifier's Left (Mono +) speaker terminal to the loudspeaker's "+" wire and the amplifier's Right (Mono -) speaker terminal to the loudspeaker's -" wire. Please note: The amplifier is not designed to drive a 412 speaker in the Bridged Mono mode. Warranty and After-sale Service (USA Customers Only) ■ Please find the warranty card enclosed with this unit when you purchased it. ■ After filling in the required items and reading the contents of the warranty card, keep it in a safe place. ■ The warranty term is two years after date of purchase. ■ If this unit does not appear to operate normally, read this manual following the instructions carefully and operate the unit again. ■ If a problem persists even though you have done according to the manual, consult your authorized Harman Kardon service station. ■ Repair within the warranty term is made according to the conditions specified in the warranty card. 5

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Connect
as
follows:
1.
Remove
about
3/4
inch
(20mm)
of
insulation
from
the
end
of
each
wire
and
twist
the
strands
of
each
conductor.
2.
After making
sure
of
the
correct
channel
and
polarity,
loosen
the
SPEAKER
terminal
knob
and
insert
the
conductor
directly
into
the
recess
at
the
upper
-left
of
the
terminal.
Then
tighten
the
terminal
knob,
and
the
end
of
speaker
wire
is
automatically
wound
around
the
terminal.
0
Setting
the
Speaker
Operating
Mode
Switches
These
switches,
located
in
the
top
right
corner
of
the
back
panel,
optimizes
the
amplifier
for
the
best
possible
operation
with
your
speakers.
It
is
extremely
important
that
you
set
these
switches
before
playing
your
speakers.
First,
determine
the
impedance
of
your
speakers.
The
impedance
may
be
noted
on
the
back
of
the
speaker
or
in
the
owner's
manual.
If
not,
call
the
dealer
or
manufacturer
to
find
out
the
impedance.
If
you
are
using
set
of
8
ohm
speakers,
set
both
of
the
"Speaker
Operating
Mode"
switches
to
852
position.
In
all
other
cases,
use
the
452
positions.
If
you
are
in
doubt
about
the
impedance
of
your
speakers,
use
the
4Q
positions,
since
the
power
amplifier
runs
cooler
in
this
mode.
Having
these
switches
set
to
8Q
if
you
are
using
4
ohm
or
6
ohm
speakers
may
result
in
overheating
of
the
amplifier
or
failure
of
an
internal
fuse.
Bridged
Mono
Operation
This
feature
permits
both
amplifier
channels
to
drive
one
852
loudspeaker.
To
operate
the
amplifier
in
this
way,
set
both
of
the
"Speaker
Operating
Mode"
switches
to
the
4Q
positions,
set
the
"Bridged
Mono"
switch
in
the
"On"
position
and
connect
one
channel
of
the
preamplifier
output
to
the
amplifier's
left
input
jack.
Then
connect
the
amplifier's
Left
(Mono
+)
speaker
terminal
to
the
loudspeaker's
"+"
wire
and
the
amplifier's
Right
(Mono
—)
speaker
terminal
to
the
loudspeaker's
-"
wire.
Please
note:
The
amplifier
is
not
designed
to
drive
a
412
speaker
in
the
Bridged
Mono
mode.
Warranty
and
After
-sale
Service
(USA
Customers
Only)
Please
find
the
warranty
card
enclosed
with
this
unit
when
you
purchased
it.
After
filling
in
the
required
items
and
reading
the
contents
of
the
warranty
card,
keep
it
in
a
safe
place.
The
warranty
term
is
two
years
after
date
of
purchase.
If
this
unit
does
not
appear
to
operate
normally,
read
this
manual
following
the
instructions
carefully
and
operate
the
unit
again.
If
a
problem
persists
even
though
you
have
done
according
to
the
manual,
consult
your
authorized
Harman
Kardon
service
station.
Repair
within
the
warranty
term
is
made
according
to
the
conditions
specified
in
the
warranty
card.
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