Infinity Speaker System ES250 User Manual

SPEAKER SYSTEMS  
Owner’s Guide  
INFINITY BETA ES250  
 
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 theuprightposition.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  
 
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 owners 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  
 
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  
 
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“smallorhigh-passfor  
all channels connected to a Beta ES250. In addition, some  
receivers/processors allow you to adjust the high-pass frequency  
for the“smallorhigh-passsetting. 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  
 
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:  
8  
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  
 
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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