Infinity ALPHA User manual

Simple Setup Guide
Home Cinema System
Complete 6-piece home cinema system
with 110 Watt powered subwoofer.

4 satellites for left, right,
and surrounds.
1 center channel.
110 W
Powered subwoofer.
included

On shelves. On the wall using optional wall
bracket (sold separately).
Mounting Options
Subwoofer
Surround Speakers
1 5 -1.8 m
Satellites and Surrounds
one. Speaker Placement
Satellites
The customer is responsible
for proper selection and use
of mounting hardware, avail-
able through hardware
stores, to properly and safe-
ly wall-mount the speakers.
Start with the subwoofer as
close to one of the front cor-
ners as possible to take
advantage of solid-angle
gains. If you get too much
bass, adjust the ”VOLUME”
towards ”MIN”. The result
will be lower distortion and
higher reliability. If the exces-
sive bass is at one or more
discrete frequencies, then it
might be necessary to con-
sider dealing with room
modes.
Here are your options:
• Modify the acoustical
coupling of the subwoofer
to the room boundaries i.e.
move the subwoofer.
• Modify the acoustical cou-
pling of the listener to the
room boundaries i.e. move
the listener.
• Move both the subwoofer
and the listener.

two. Speaker Connections
Separate and strip the ends
of the speaker wire as
shown. Speakers and ampli-
fiers/receivers have corre-
sponding (+) and (–) termi-
nals. Most two conductor
wire is color-coded or has a
ridge on one of its insulating
jackets, so that you can
easily identify which wire is
connected to which termi-
nal. It is important to con-
nect all the speakers identi-
cally: (+) on the speaker to
(+) on the amplifier and (–)
on the speaker to (–) on the
amplifier. Wiring “out of
phase” results in thin sound,
weak bass and a poor
stereo image.
Connection Tips
Speaker Level

Line Level
Max Min
Subwoofer
Level
130Hz 40Hz
Subwoofer
Crossover
Volume
If your receiver has sub-
woofer output jacks, you
may connect the Alpha
Junior Sub using this
method.
Note: Some receivers/
amplifiers have a single
(mono) subwoofer output. In
this case, it is recommended
that you use a “Y”-connector
(not included) to maximize
the subwoofer’s perfor-
mance.
Crossover Frequency
The crossover frequency
knob determines the high-
est frequency your sub-
woofer will reproduce. It
allows a seamless transition
from the subwoofer to the
satellite speakers. Experi-
ment with this adjustment
to find the crossover fre-
quency that sounds best in
your room.
For subwoofers used with
Surround Sound processors
with dedicated subwoofer
outputs, the best result will
be obtained with the control
at the ”130 Hz“position.

If there is no sound from
any of the speakers,
check the following:
•Receiver/amplifier is on
and a source is playing.
•Powered subwoofer is
plugged in and is in the “On”
position.
•Check all wires and con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured.
•Review proper operation of
your receiver/amplifier.
If there is no sound com-
ing from one speaker,
check the following:
•Check the “Balance”
control on your receiver/
amplifier.
•Check all wires and con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured.
If the system plays at low
volumes but shuts off as
volume is increased,
check the following:
•Check all wires and con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured.
•If more than one pair of
main speakers is being used,
check the minimum imped-
ance requirements of your
receiver/amplifier.
If there is low bass output,
check the following:
•Make sure the connections
to the left and right “Speaker
Inputs”have the correct
polarity (+ and –).
•Make sure that the sub-
woofer is plugged into an
active electrical outlet.
•Powered subwoofer is
plugged in and is in the “On”
position.
If there is no sound from
the surround speakers,
check the following:
•Check all wires and con-
nections between receiver/
amplifier and speakers.
Make sure all wires are con-
nected. Make sure none of
the speaker wires are frayed,
cut or punctured.
•Review proper operation of
your receiver/amplifier and
its surround sound features.
•Make sure the movie or TV
show you are watching is
recorded in Dolby surround.
If it is not, check to see if
your receiver/amplifier has
other surround modes you
may use.
Troubleshooting

Alpha 05
Satellite/Center Channel
L.F. Drive Unit: 110 mm (CMMD cone/rubber surround)
Tweeter: 10 mm (polycarbonate dome)
Frequency Response: 80 Hz –22 kHz
Sensitivity: 88 dB
Nominal Impedance: 8 ohm
Crossover Frequency: 3.5 kHz
Recommended Amplifier: 10 –60 Watts
Dimensions (H x W x D): 228 x 146 x 175 mm
*Net Weight: 246 g = Satellite, 274 g = Centre Channel
Cabinet Finishes: Beech/Cherry/Black ash
Grille: Black acoustic cloth
Alpha HCS aktive subwoofer
Low-freq. cut-off: 36 Hz
High-freq. cut-off: Variable, 40-130 Hz
Built-in power amp.: 110 Watt
Driver: 210 mm long-throw
Dimensions (HxBxD): 350 x 295 x 350 mm
Weight: 11 kg
Alpha Home Cinema System Specifications
Refinements may be made on occasion to existing products without notice, but will always
meet or exceed original specifications unless otherwise stated.

Harman Consumer International
2, route de Tours, 72500 Château du Loir, France
www.infinitysystems.com
©2001 Harman International
Printed 05/2001 Part No. 230V
A Harman International Company
Declaration of Conformity
We, Harman Consumer Inte national
2, route de Tours
72500 Château-du-Loir
France
declare in own responsibility, that the p oduct
described in this owner’s manual is in compliance
with technical standards:
EN 55013/A12:1994
EN 55020:1994
EN 55022:1994 class B
EN 61000-3-2:1995
EN 61000-3-3:1995
Robin Marshall
Harman Consumer Inte national
France.05/01