Infinity Alpha 25es System
Contents
1. Wo INfinity SPEAKER SYSTEMS Owner s Guide Infinity Alpha 25es Infinity Alpha Series The Infinity Alpha Series of loudspeakers continues Infinity s long standing commitment to accurate sound reproduction Our patented Ceramic Metal Matrix Diaphragm C M M D drivers precision dividing networks and rigid heavily braced enclosures combine to deliver uncompromised performance in any stereo or multichannel home theater system The Infinity Alpha 25es is the perfect loudspeaker to complete any home theater system Unpacking the Speaker If you suspect damage from transit report it immediately to your dealer Keep the shipping carton and packing materials for future use PLANNING YOUR SYSTEM Choosing Proper Placement and Setup The Infinity Alpha 25es surround speaker can be used in side or rear channel applications Please refer to the placement and setup method for your application The first step is to determine the application for which your Infinity Alpha 25es surround speaker will be used If you are using the Infinity Alpha 25es for surround channels in a 5 channel home theater system or for side channels in a 6 or 7 channel home theater system Application 1 please follow the directions below If you are using the Infinity Alpha 25es as a rear speaker ina 6 or 7 channel home theater system Application 2 please follow the directions on page 3 Placement Application 1 When using the Infin2. Check the speakers for playback first by setting the system The Infinity Alpha 25es does not require any routine volume control to a minimum level and then by applying power to maintenance When needed use a soft cloth dampened your audio system Play a favorite music or video segment and with water only to remove any fingerprints or dust increase the system volume control to a comfortable level Clean the grille by gently vacuuming NOTE You should hear balanced audio reproduction across the NOTE Do not use any cleaning products or polishes on the entire frequency spectrum If not check all wiring connections or cabinet or grille consult the authorized Infinity dealer from whom you purchased the system for more help When the Infinity Alpha 25es speakers are used as part of a Dolby Digital or DTS multichannel home theater system with a powered subwoofer itis recommended that you set your receiver processor speaker mode to small or high pass for all channels connected to an Infinity Alpha 25es 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 the lowest setting above 70Hz Consult you receiver processor manual for more information about these adjustments The placement and setup instructions in this manual are written in general
3. Infinity Alpha 25es will accommodate most types of 14 to 18 gauge wire NOTE If desired consult your local Infinity dealer about speaker wire and connection options The speakers have coded terminals that accept a variety of wire connectors The most common connection is shown in Figure 8 To ensure proper polarity connect each terminal on the back of the amplifier or receiver to the respective red terminal on each speaker as shown in Figure 9 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 IMPORTANT Do not reverse polarities i e to or to when making connections Doing so will cause poor imaging and diminished bass response BLACK LOOSEN TERMINALS INSERT BARE END TIGHTEN TERMINALS NO STRIPE STRIPE This example shows how to connect bare wires to the terminals Banana plugs may also be inserted directly into the rear of the connector NOTE Banana plugs will protrude past the speaker enclosure requiring a small cutout in the wall behind the speaker Speaker wire may be run through this hole as well one channel shown Receiver or Amplifier RED rear view Speaker rear view Wiring diagram shows polarity connections for one channel Infinity Alpha 25es FINAL ADJUSTMENTS CARE OF YOUR SPEAKER SYSTEM
4. manual is in compliance with technical standards EN 50081 1 1992 EN 50082 1 1992 i TF i Robin Marshall Harman Consumer International Chateau du Loir France 9 02 Infinity Alpha 25Es Wlnfinity H A Harman International Company 2002 Harman International Industries Incorporated 250 Crossways Park Drive Woodbury NY 11797 USA 800 553 3332 USA Only www infinitysystems com Infinity is a registered trademark and Ceramic Metal Matrix Diaphragm C M M D is a trademark of Harman International Industries Incorporated Trademarks of Dolby Laboratories DTS is a registered trademark of Digital Theater Systems Inc Ceramic Metal Matrix Diaphragm C M M D patent nos 6 327 372 and 6 404 897 Printed in USA 9 02 Part No 335833 001
5. ity Alpha 25es for surround channels in a 5 channel home theater system or for side channels in a 6 or 7 channel home theater system refer to Figures 1 and 2 The speakers should be placed perpendicular to or slightly behind the primary listening location as shown Infinity Alpha 25es This overhead view shows a typical home theater plan ofolg U Left Center Right Infinity Front Channel Front Subwoofer Channel Channel optional Couch Left Right Surround Surround Channel Channel FIGURE 2 Infinity Subwoofer E optional Left Center Right Front Channel Front Channel Channel Left Right Surround Surround Channel Couch Channel Setting the Surround Configuration Selector It is generally recommended that the selectable surround mode configuration be set to Bipole This will provide a large ambient surround sound field while allowing for precise localization of sound effects that the filmmaker has placed in the surround tracks If the side walls on which the speaker will be mounted are more than about 14 from the listening position setting the Surround Mode Configuration Switch to Monopole may offer improved performance It is also recommended that the Monopole position be selected if the speakers will be mounted close to a corner as shown in Figure 2 If you are using a receiver processor with a THX surround mode and have selected the THX sur
6. round mode it may be beneficial to use the Dipole setting This is a matter of personal preference and may change depending on the individual film soundtrack It is also recommended that the Dipole setting be used with older recordings that are only recorded with a Dolby Pro Logic not the newer Dolby Digital soundtrack IMPORTANT NOTE The set of drivers that the arrow in Figure 3 points to 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 Figure 3 Surround mode configuration switch Y DIPOLE BIPOLE MONOPOLE Lb Placement Application 2 When using the Infinity Alpha 25es as a rear speaker 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 Q 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 a
7. s shown in Figure 6 This overhead view shows a typical home theater plan with a single rear center surround channel oloig U Left Center Right Infinity Front Channel Front Subwoofer Channel Channel optional Couch J a Left Right Side Side Channel Channel Rear Center Channel This overhead view shows a typical home theater plan when using two rear channel speakers att Center Right Infinity Front Channel Front Subwoofer Channel Channel optional Couch rp Right C Side Side Channel anal Left Rear Channel C right Rear Channel _Ficure 6 Surround mode configuration switch wy Oo DIPOLE 9 3 BIPOLE MONOPOLE Infinity Alpha 25es The Infinity Alpha 25es 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 8 wood screws fastened to a wall stud If a wall stud is unavailable install an anchor appropriate for a 1 1 2 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 templa
8. te on the wall in the desired speaker location Make two markings per speaker j 3 5 1 6 fo il oo 20 CH V Step 2 Fasten 2 1 1 2 8 wood screws to the wall using the markings placed in Step 1 as your guide Leave a 3 16 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 5 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 Infinity Alpha 25es IMPORTANT NOTE The set of drivers that the arrow in Figure 3 points to 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 IMPORTANT Make sure all equipment is turned off before making any connections For speaker connections use a minimum 16 gauge speaker wire with polarity coding The side of the wire with a ridge or other coding is usually considered positive polarity i Heavier gauge wire should be used when more than 50 feet of speaker wire is required The wire channels on the rear of the
9. 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 C6 gt Infinity Alpha 25es SPECIFICATIONS Frequency Range 3dB Recommended Amplifier Power Range Sensitivity 2 83V 1 meter Nominal Impedance Crossover Frequency Low Frequency Drivers High Frequency Driver s Dimensions H W D Weight Grille Infinity Alpha 25es 60Hz 22kHz 10 125 watts 87dB 8 ohms 2 500Hz 24dB octave Dua Dua 7 18 5 1 4 133mm 1 25mm C M M D 14 1 2 368mm 14 1 8 359mm 178mm b 8 2kg Black cloth whi te cloth on white model 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 Declaration of Conformity CE 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
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