SPEAKER SYSTEMS
Owner’s Guide
™
INFINITY BETA ES250
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IMPORTANT NOTE: The set of drivers closer to the monopole
setting indicator in Figure 3 should be installed toward the front
of the room. It does not matter whether the tweeter is positioned
above or below the woofer.This will ensure proper operation
and performance should the Monopole or Dipole position on
the surround mode configuration switch be selected.
Infinity
Subwoofer
(optional)
Left
Front
Channel
Right
Front
Channel
Center
Channel
(BIPOLE)
(MONOPOLE)
Couch
(DIPOLE)
Left
Right
Side
Side
Channel
Channel
Figure 3. Surround mode configuration switch.
Rear Center Channel
Placement (Application 2)
Figure 4. This overhead view shows a typical home theater plan
with a single rear-center surround channel.
When using the Beta ES250 as a rear speaker(s) in a 6- or
7-channel home theater system, refer to Figures 4 and 5.
The speaker(s) should be mounted on the rear wall facing the
listening area, between the side channel speakers. If you are
using one rear speaker, it should be mounted as close as
possible to the center of the listening area.When using two
rear speakers, they should be spaced evenly within the width
of the listening area.
Infinity
Subwoofer
(optional)
Left
Front
Right
Front
Center
Channel
Channel
Channel
Setting the Surround Configuration Selector
When used as a rear channel speaker in a 6- or 7-channel
system, it is recommended that the Surround Mode Configuration
Switch be set to Bipole, as shown in Figure 6.
Placement (Application 3)
The Beta ES250 also possesses the unique capacity to behave
as two distinct loudspeakers from one enclosure.This allows you
to use a single ES250 for both the left and right rear speakers
in a 7-channel system.
Couch
Left
Side
Channel
Right
Side
Channel
To utilize the ES250 in this application, follow these simple steps:
Left Rear Channel
Right Rear Channel
1. Decide where you want to mount the speaker. Ideally, it should
be mounted in the center of the rear wall, similar to how it would
be mounted in a 6-channel system (Fig. 4).
Figure 5. This overhead view shows a typical home theater plan
when using two rear channel speakers.
2. Loosen the terminals and remove the strapping bars that
connect the two sets of terminals (Fig. 9).
3.To ensure proper left/right connections, make sure that the
speaker is in the“upright”position.The label on the back of
the speaker should be readable, not upside down.
(BIPOLE)
4. Connect the speaker wire for the RIGHT REAR speaker to
the top set of terminals (Fig.10).
(MONOPOLE)
5. Connect the speaker wire for the LEFT REAR speaker to
the bottom set of terminals (Fig. 10).
Figure 6. Surround mode
configuration switch.
6. Set the mode configuration switch to the Bipole position (Fig. 6).
(DIPOLE)
3
BETA ES250
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WIRING THE SYSTEM
IMPORTANT: Make sure all equipment is turned off before
making any connections.
Applications 1 and 2
(one channel shown)
For speaker connections, use a high-quality speaker wire with
polarity coding.The side of the wire with a ridge or other coding
is usually considered positive polarity (i.e., +). Heavier-gauge
wire should be used when more than 50 feet (15m) of speaker
wire is required.The wire channels on the rear of the Beta ES250
will accommodate most types of 14- to 18-gauge wire.
+
–
Receiver or
Amplifier
(rear view)
NOTE: If desired, consult your local Infinity dealer about speaker
wire and connection options.
+
–
To ensure proper polarity, connect each + terminal on the back
of the amplifier or receiver to the respective + (red) terminal on
Speaker
(rear view)
–
each speaker, as shown in Figure 8. Connect the (black)
terminals in a similar way. See the owner’s guides that were
included with your amplifier or receiver to confirm connection
procedures.
Figure 8. Wiring diagram shows polarity connections for one
channel using Applications 1 and 2.
–
–
IMPORTANT: Do not reverse polarities (i.e., + to or to +)
when making connections. Doing so will cause poor imaging and
diminished bass response.
Application 3
Figure 9. Loosen the terminals and remove the strapping bars
that connect the two sets of terminals.
Figure 7. This example shows how to connect bare wires to the
terminals.
Right Rear
Speaker
Receiver/
Amplifier
Right
Rear
Left
Rear
–
–
+
+
+
+
–
–
Left Rear
Speaker
Figure 10. Wiring diagram shows connections for two channels
using Application 3.
4
BETA ES250
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WALL-MOUNTING
The Infinity Beta ES250 speaker is designed to mount directly
to a wall. Each speaker has (4) keyholes in the rear to allow
either left- or right-side placement. Each speaker will require
(2) 1-1/2" (38mm), # 8 wood screws fastened to a wall stud.
If a wall stud is unavailable, install an anchor appropriate for
a 1-1/2" (38mm), # 8 screw. Use the supplied template to
accurately position the screws on the wall and refer to
the diagrams for more assistance.
NOTE: The customer is responsible for the correct selection and
use of mounting hardware (available through hardware stores)
that will ensure the proper and safe wall-mounting of the
speakers.
Step 1.
Position the supplied wall-mount template on the wall in the
desired speaker location. Make two markings per speaker.
11-13/16" (300mm)
8-3/8" (213mm)
4-3/16" (107mm)
2-7/16"
(62mm)
13-3/4"
(349mm)
Wire Channel
Figure 11.
Step 2.
Fasten (2) 1-1/2" (38mm), # 8 wood screws to the wall using the
markings placed in Step 1 as your guide. Leave a 3/16" (5mm)
space between the wall and screwhead. If a wall stud is not
available, use an appropriate anchor.
Step 3.
Attach speaker wire, as shown on page 4.
Step 4.
Place the speaker on the wall by aligning the upper two keyholes
on the back of the speaker to the screwheads on the wall. Once
positioned properly, the speaker should slide down slightly and
become secure.
IMPORTANT NOTE: The set of drivers closer to the monopole
setting indicator in Figure 3 should be installed toward the
front of the room. It does not matter whether or not the tweeter
is positioned above or below the woofer.This will ensure proper
operation and performance should the Monopole or Dipole
position on the surround mode configuration switch be selected.
5
BETA ES250
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FINAL ADJUSTMENTS
CARE OF YOUR SPEAKER SYSTEM
Check the speakers for playback first by setting the system
volume control to a minimum level, and then by applying power to
your audio system. Play a favorite music or video segment and
increase the system volume control to a comfortable level.
The Beta ES250 does not require any routine maintenance.When
needed, use a soft cloth to remove any fingerprints or dust.
NOTE: Do not use any cleaning products or polishes on the
cabinet or grille.
NOTE: You should hear balanced audio reproduction across the
entire frequency spectrum. If not, check all wiring connections or
consult the authorized Infinity dealer from whom you purchased
the system for more help.
When the Beta ES250 speakers are used as part of a Dolby
Digital or DTS® multichannel home theater system with a
powered subwoofer, it is recommended that you set your
receiver/processor speaker mode to“small”or“high-pass”for
all channels connected to a Beta ES250. In addition, some
receivers/processors allow you to adjust the high-pass frequency
for the“small”or“high-pass”setting. If your receiver/processor
has this capability, it is recommended that you set the high-
pass frequency to between 80Hz and 120Hz. Consult your
receiver/processor manual for more information about
these adjustments.
The placement and setup instructions in this manual are written
in general terms to cover most typical installations.We realize
that each room is different and that your specific installation may
require some modification to these guidelines.You can be sure
that if you need to install the speakers outside the guidelines in
the manual, they will still deliver excellent sound with any music
or film soundtrack.
Feel free to experiment with the Surround Mode Selector Switch
to determine the best settings in your room with your system.
6
BETA ES250
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SPECIFICATIONS
Beta ES250
Frequency Ranges:
60Hz – 20kHz (±3dB)
–
50Hz – 40kHz ( 6dB)
Recommended
Amplifier Power Range:
10 – 150 watts
87dB
Sensitivity:
(2.83V @ 1 meter)
Nominal Impedance:
Crossover Frequency:
8Ω
2.3kHz; 12dB/octave
Low-Frequency Drivers:
High-Frequency Drivers:
Dimensions (H x W xD):
Dual 5" (130mm) CMMD
Dual 1" (25mm) CMMD
13-3/4" x 11-13/16" x 6-7/8"
(350mm x 300mm x 175mm)
Weight:
12.5 lb (5.7kg)
Declaration of Conformity
We,Harman Consumer International
2, route de Tours
72500 Chateau-du-Loir
France
declare in own responsibility that the product described in this owner’s
manual is in compliance with technical standards:
EN 61000-6-3:2001
EN 61000-6-1:2001
Infinity continually strives to update and improve existing products, as well as
create new ones.The specifications and construction details in this and
related Infinity publications are therefore subject to change without notice.
Robin Marshall
Harman Consumer International
Chateau-du-Loir, France 12/03
7
BETA ES250
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Infinity Systems,250 Crossways Park Drive,Woodbury, NY 11797 USA 516.674.4INF (4463)
www.infinitysystems.com
Infinity is a registered trademark, and Infinity Beta and CMMD are trademarks, of Harman International Industries, Incorporated.
THX is manufactured under license from THX Ltd. Lucasfilm and THX are registered trademarks of THX Ltd.
*Trademarks of Dolby Laboratories. DTS is a registered trademark of Digital Theater Systems, Inc.
Ceramic Metal Matrix Diaphragm (CMMD) patent nos. 6,327,372 and 6,404,897.
Part No. 352611-001 02/04
© 2004 Harman International Industries, Incorporated
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