AVI 250 (serv.man9) - Harman Kardon Audio User Guide / Operation Manual. Page 16

Installation, Set Up & Configuration

10

System Installation
After unpacking the unit, and placing it
in on a solid surface capable of
supporting its weight, you will need to
make the connections to your audio and
video equipment. These steps need to be
done only when the unit is first installed,
or when a change is made to the input
source equipment.

Audio Input and 
Output Connections
Use the “Audio and Systems
Connections” Diagram in the inside front
cover as a guide to connecting audio
components and speakers to the rear
panel. We recommend that you use high
quality cables when making connections
to source equipment and recorders to
preserve the quality of the signals.

NOTE: When making connections to
audio source equipment or speakers it is
always a good practice to unplug the unit
from the AC wall plug. This prevents any
possibility of accidentally sending audio
or transient signals to the speakers that
may  damage them.

1. For playback only sources, such as a
tuner, CD player, CD changer, external
phono preamp or external digital to
analog converter, connect the output
jacks of the player to the appropriately
labeled inputs on the rear panel. 

å∫

NOTE: When the source device has both
fixed and variable audio outputs it is best
to use the fixed output unless you find
that the input to the amplifier is so low
that the sound is noisy, or high that the
signal is distorted.

2. When connecting recording devices
such as cassette recorders, open reel tape
decks, DCC, DAT or MD, connect the
PLAY/OUT jacks of the recorder to the 

jacks 

çé

. Connect the RECORD/IN

jacks on the recorder to the 

jacks

∂ƒ

.

3. Connect the front, center and surround
speaker outputs 

˚¬µñø

to the

respective speakers.

To assure that all the audio signals are
carried to your speakers without loss of
clarity or resolution, we suggest the use of
high quality speaker cable. Many brands
are available, and the choice may be
influenced by the distance between your
speakers and this amplifier, the type of
speakers you use, personal preferences
and other factors. Your dealer or installer
is a valuable resource to consult in
selecting the proper cable.

Regardless of the brand of cable selected,
we recommend that you use a cable
constructed of fine, multi-strand copper
with a gauge of 14 or larger. Remember,
that in specifying cable, the lower the
number, the thicker the cable.

Cable with a gauge of 16 may be used for
short runs of less than ten feet. We do not
recommend that you use cables with an
AWG equivalent of 18 or higher due to the
power loss and degradation in
performance that will occur.

One way to insure that cables will deliver
a predictable level of performance is to
use Home THX

®

certified cables. This

certification assures that the cables have
met a rigorous set of specifications
designed for home theater applications.

Cables that are run inside walls should
have the appropriate markings to
indicate listing with the appropriate
testing agency standards. Questions about
running cables inside walls should be
referred to your installer or electrical
contractor.

When connecting wires to the speakers,
be certain to observe proper polarity.
Remember to connect the “negative” or
“black” wire to the same terminal on the
amplifier and the speaker. Similarly, the
“positive” or “Red” wire should be
connected to the like terminal on the AVI
250 and speaker.

Engelsk manual AVI250  11/01/98 8:52  Side 10