Harman PM645 User Manual

CONNECTIONS
Turntable
o
Speaker System 1
Right channel Left channel
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Compact Disc Player
or Video Component
Connecting Other Components
Carefully connect the plugs to the left and right channel
jacks. Push the plugs in all the way. Poor setting of the plugs
tends to cause hum or intermittent sound and may damage
the speakers.
NOTE: While you are connecting this unit to the rest of your
high fidelity system, please unplug the power cord.
disconnecting not only this unit but all the components,
from the AC outlet.
Do not interwind the connection wires with the power cord.
If interwound, the sound quality may be degraded.
The AC convenience receptacies on the rear panel have a
capacity of 200 watts and can be used for tuner, turntable or
tape decks. Read the manual or labels on the component to
check its power consumption before connecting it to this
unit.
SWITCHED: The power to this receptacle is turned on and
off by this unit's power switch.
UNSWITCHED: The power to this receptacle is independent
of this units power switch.
NOTE: In some countries, these AC convenience recep-
tacles are not available.
Connecting Speakers
Connect the speaker wires carefully to the speaker terminals
on the rear panel so as not to mistake the left and the right
3 channels or reverse the speaker polarities (+ and —).
Cassette Tape Deck or
Video Cassette Recorder
L
Right channel Left channel
Speaker System 2
Open Reel Tape Deck or
Video Cassette Recorder
Use sufficiently thick wire (18 gauge for short lengths, 16-
12 gauge for longer lengths). It is recommended to use
color-coded wire for easy polarity identification. Speaker
wires should be as short as possible, and the left and the
right channel wires should be the same length.
1. Remove about 3/4 inch SS
(20 mm) of insulation from 3
the end of each wire and
twist the strands of each 3/4 inch
end.
2. After making sure of the
correct channel and pola-
rity, loosen the SPEAKER
SYSTEM terminal knob
and insert the conductor
straight into the recess at
the upper-right of the ter-
minal. Tighten the terminal
knob, and the end of
speaker wire is wound
automatically.
CAUTION: Two speaker systems can be connected to this
unit. The minimum speaker impedance should be 4 Ohm
when only one speaker system is connected. When two
speaker systems are connected, care should be taken that
net impedance does not become less than 4 Ohm.

Harman PM645 Specifications

General

Frequency Response	20Hz - 20kHz
Channels	2
Power Output per Channel	45W
Mounting	Rack Mountable
Total Harmonic Distortion	0.09%
Input Sensitivity	150mV
EQ	Bass, Treble