Beta 10-20-40-50-C250-C360 OM

6/30/04

3:45 PM

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INFINITY BETA SPEAKER SYSTEMS
Owners Guide Beta 10 Beta 20 Beta 40 Beta 50 Beta C250 Beta C360

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INFINITY BETA SERIES
The Infinity Beta Series of loudspeakers continues Infinitys longstanding commitment to accurate sound reproduction. Our patented Ceramic Metal Matrix Diaphragm (CMMD) drivers, precision dividing networks, and rigid, well-braced enclosures, along with our newly developed, patentpending Constant Acoustical Impedance (CAI) waveguide, combine to deliver uncompromised performance in any stereo or multichannel home theater system. In addition, Beta Series speakers are magnetically shielded for safe placement adjacent to a television.

Home Theater

For front-channel use, place one speaker on the left and another on the right, along either side of the television monitor. Since the speakers are magnetically shielded, you can place them near the TV without worrying about the field distorting the TV picture. For surround-channel use, place speakers on bookshelves or stands alongside the listening position. Final placement depends on room acoustics, availability of space and your listening preference (Figures 2 and 3). In 6- or 7-channel configurations, place the rear channel(s) behind the listening position, as shown in Figures 2 and 3. NOTE: An Infinity powered subwoofer will add impact and realism to both music and film soundtracks. Contact your Infinity dealer for recommendations on subwoofer models for your application.
Infinity Subwoofer (optional)

UNPACKING THE SPEAKERS

If you suspect damage from transit, report it immediately to your dealer. Keep the shipping carton and packing materials for future use.

PLACEMENT

Stereo
Before deciding where to place your Beta speakers, survey your room and think about placement, keeping the following points in mind, using Figure 1 as a guide: For best results, place the speakers 6' 8' (1.5m2.5m) apart. Position each speaker so that the tweeter is approximately at ear level. Generally, bass output will increase as the speaker is moved closer to a wall or corner. Refer to Home Theater below if you also plan to use the speakers for home theater reproduction.

Left Front Channel

Center Channel

Right Front Channel

Left Surround Channel

Left Rear Channel

Center Rear Channel

Right Rear Channel

Right Surround Channel

Left Channel

Right Channel
Figure 2.This overhead view shows a typical home theater plan. Left/right rear channels are for a 7-channel system. Center rear channel is for a 6-channel system.

(optional)

Listening Position
Figure 1. Experiment with speaker placement to obtain the best bass level and stereo imaging in your room.
Figure 3.This figure shows an alternate layout, which may be more suitable for some rooms. Left/right rear channels are for a 7-channel system. Center rear channel is for a 6-channel system.

BETA SPEAKER SYSTEMS

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INSTALLING FEET

Beta 40 and Beta 50
These models feature four rubber feet, which enables them to be placed on a smooth-surfaced floor, such as tile or hardwood. Four metal spikes are supplied for use when the speaker is to be placed on a carpeted surface, to decouple the speaker from the floor and prevent unwanted damping.To insert the spikes, gently lay the speaker on its side (not its front or back) on a soft, nonabrasive surface. Each spike screws into the threaded insert in the center of each rubber foot. Make sure all four spikes are screwed in completely for stability. NEVER drag the speaker to move it, as this will damage the spikes, the feet and/or the wood cabinet itself. Always lift the speaker and carry it to its new location. CAUTION: Floorstanding (tower) loudspeakers have a high center of gravity and may become unstable and tip over during earthquakes, or if rocked, tipped or improperly positioned. If this is a concern, these speakers should be anchored to the wall behind them, using the same procedures and hardware customary for anchoring bookcases and wall units.The customer is responsible for proper installation and proper selection of hardware.

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WIRING THE SYSTEM
IMPORTANT: Make sure all equipment is turned off before making any connections. 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., +). 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 4. 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 5. Connect the (black) terminals in a similar way. See the owners guides that were included with your amplifier, receiver and television 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.
Figure 6.This example shows how to connect bare wires to the terminals. Banana plugs may also be inserted directly into the rear of the connector.
Figure 4.This figure shows how to connect bare wires to the terminals.
Beta 10, Beta 20, Beta C250 and Beta C360
Figure 7. Wiring diagram shows polarity connections for one channel of a stereo or home theater system.
Figure 5. Wiring diagram shows polarity connections for one channel of a stereo or home theater system.

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BI-WIRING
The outer connection panel and internal dividing network of the Beta 40 and Beta 50 are designed so that separate sets of speaker cables can be attached to the low-frequency transducer and midrange/highfrequency transducer portions of this dividing network.This is called bi-wiring. Bi-wiring can provide several sonic advantages and considerably more flexibility in power amplifier selection.

FINAL ADJUSTMENTS

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. 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. The amount of bass you hear and the stereo-image quality will be affected by a number of different factors, including the rooms size and shape, the construction materials used to build the room, the listeners position relative to the speakers, and the position of the speakers in the room. Listen to a variety of music selections and note the bass level. If there is too much bass, move the speakers away from nearby walls. Conversely, if you place the speakers closer to the walls, there will be more bass output. Nearby reflecting surfaces can adversely affect stereo-imaging quality. If this happens, try angling the speakers slightly inward toward the listening position until the optimum effect is achieved.
CARE OF YOUR SPEAKER SYSTEM
FIGURE 8. Each Beta Series enclosure has a wood-grain-vinyl finish that does not require any routine maintenance. When needed, use a soft cloth to remove any fingerprints or dust from the enclosure or grille. NOTE: Do not use any cleaning products or polishes on the cabinet or grille.

Single-Stereo Amplifier

FIGURE 9.

Dual-Stereo Amplifier

FIGURE 10.

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SPECIFICATIONS

Beta 10

Frequency Ranges: Recommended Amplifier Power Range: Sensitivity:
(2.83V @ 1 meter) 60Hz 20kHz (3dB) 55Hz 40kHz ( 6dB)

Beta 20

58Hz 20kHz (3dB) 52Hz 40kHz ( 6dB)

Beta 40

45Hz 20kHz (3dB) 40Hz 40kHz ( 6dB)

Watts 88dB

Watts 90dB

Watts 91dB

Nominal Impedance: Crossover Frequency: Low-Frequency Driver(s): Mid-Frequency Driver: High-Frequency Driver: Dimensions (H x W x D):

(with grille)

8 3.4kHz; 12dB/octave 5" (130mm) CMMD, magnetically shielded NA
8 2.4kHz; 12dB/octave 6-1/2" (165mm) CMMD, magnetically shielded NA
8 600Hz, 18dB/octave; 3.2kHz, 12dB/octave Dual 6-1/2" (165mm) CMMD, magnetically shielded 5" (130mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 37" x 9-13/16" x 13-1/8" (950mm x 250mm x 333mm) 50.2 lb (22.8kg)
1" (25mm) CMMD, magnetically shielded 11-13/16" x 7-1/2" x 11-7/16" (300mm x 190mm x 290mm) 14 lb (6.4kg)
1" (25mm) CMMD, magnetically shielded 13-3/4" x 8-7/8" x 13" (350mm x 225mm x 330mm) 20.7 lb (9.4kg)

Weight:

Beta 50
(2.83V @ 1 meter) 35Hz 20kHz (3dB) 30Hz 40kHz ( 6dB)

Beta C250

55Hz 20kHz (3dB) 50Hz 40kHz ( 6dB)

Beta C360

8 600Hz, 18dB/octave; 3.3kHz, 12dB/octave Dual 8" (200mm) CMMD, magnetically shielded 5" (130mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 41-5/16" x 10-7/16" x 14-11/16" (1050mm x 265mm x 372mm) 62.5 lb (28.4kg)
8 2.4kHz; 12dB/octave Dual 5" (130mm) CMMD, magnetically shielded NA
8 500Hz, 3.2kHz; 12dB/octave Dual 6-1/2" (165mm) CMMD, magnetically shielded 4" (100mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 8-1/2" x 25-5/8" x 11-3/4" (215mm x 650mm x 298mm) 34.5 lb (15.7kg)
1" (25mm) CMMD, magnetically shielded 6-11/16" x 17" x 8-3/8" (170mm x 430mm x 212mm) 16 lb (7.3kg)
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.

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Declaration of Conformity
We, Harman Consumer International 2, route de Tours 72500 Chateau-du-Loir France
declare in own responsibility that the products described in this owners manual are in compliance with technical standards: EN 61000-6-3:2001 EN 61000-6-1:2001
Robin Marshall Harman Consumer International Chateau-du-Loir, France 7/04

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2004 Harman International Industries, Incorporated 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 (patent nos. 6,327,372 and 6,404,897) are trademarks, of Harman International Industries, Incorporated. Part No. 352036-002 7/04

A New Generation, Born to Excel.
INTRODUCING INFINITY BETA.
More often than not, great loudspeakers
are products of evolution, engineered to improve on the best of whats come before. With the Beta Series, Infinity offers a powerful and exquisitely beautiful new case in point. A direct technological descendant of Infinitys acclaimed Prelude MTS Series sharing a heritage of excellence dating back more than 35 years Beta imparts exceptional fidelity and realism to music and movies. In complete home theaters and in bookshelf and floorstanding systems alike, Beta delivers clean, resonance-free high and midrange frequencies with forceful dynamic bass, bringing your favorite home entertainment vividly to life.

o ur if

e ti m
All the Beta speakers are magnetically shielded for safe placement near your TV. Perforated metal grilles give Beta a fresh and striking appearance.
A LEGEND IN ITS OWN RIGHT.
Featuring the breakthrough Ceramic Metal Matrix Diaphragm (CMMD) technology developed for the flagship Prelude MTS and being the first Infinity speakers to use the new Constant Acoustic Impedance (CAI) waveguide technology, Beta represents Infinitys latest, most innovative thinking, combined with advanced manufacturing techniques.

ADVANCED CERAMICS 101.

Ceramic Metal Matrix Diaphragms.
Magnified cross section of CMMD alumina layers.
Ultrathick, contoured baffles provide a rigid, stable platform for the drivers while simultaneously minimizing unwanted edge diffractions off the baffle.
Prelude MTS, Infinitys flagship system.
Equally adept at reproducing the thrills of an over-the-top action movie or the nuances of an acoustical guitar solo, this is a loudspeaker series engineered to be wholly captivating.
Infinitys patented Ceramic Metal Matrix Diaphragms reveal all the nuances of todays music and film recordings by virtually eliminating unwanted resonances.The key is a ceramic compound called alumina.Three times as stiff as titanium and 85 times stiffer than felted paper alumina is bonded to a metallic substrate to create a three-layer sandwich. CMMD adds bass impact to each Beta model, and delivers open, detailed and clean mid and high frequencies.
With the Constant Acoustic Impedance (CAI) waveguide, the full effect of the CMMD tweeter can be realized, resulting in cleaner, more uniform sound throughout more of your listening environment.

A GUIDE TO BETTER SOUND.

Loudspeaker designs sometimes include acoustical waveguides to improve on- and off-axis high-frequency response. But Beta Series speakers feature Infinitys patent-pending CAI waveguide, which delivers several significant additional benefits and further improves performance over other waveguide designs. Constant Acoustic Impedance increases the sensitivity of the high-frequency driver, creating more dynamic headroom, thus enabling a seamless sonic transition between the tweeter and the lower-frequency transducers in both two- and three-way systems.
IDEAL FOR SACD & DVD-AUDIO.
Extended High-Frequency Response. Infinitys newly developed CMMD tweeter extends the frequency response beyond 40kHz, resulting in remarkably clear high frequencies, yielding exceptional fidelity even when reproducing todays demanding digital, high-resolution program sources such as SACD and DVD-Audio.

This helps to ensure uniform frequency response across the entire listening room, greatly broadening the optimum listening area. In addition, the CAI waveguide allows for less complicated crossover designs; the ultimate result is a distinctly pure, accurate sound unique to Beta. Remember: You heard it here first.

THE BOTTOM LINE.

YOUR IDEAL SYSTEM IS READY.
Black Ash? Cherry? Beech? A bookshelf system for the bedroom or office? A music system for the den or living room? A complete home theater system (popcorn machine not included) with a dedicated center channel speaker,
Crossover design can be optimized with shortened signal paths, yielding cleaner sound reproduction.
Add an SW-12 or CSW-10 powered subwoofer for incredible music and home theater realism.
a subwoofer and surrounds?
Deep, realistic bass is an
BETA ES250 EFFECTS SPEAKER.
essential element of the cinematic experience. But its just as essential in duplicating live musical performances. Infinity pays homage to the power of bass with two incomparable powered subwoofers, the SW-12 and the compact CSW-10. Cherry Black Ash
All Beta models utilize heavy-duty, gold-plated binding posts to ensure long-term signal transfer and easy connection to any system. The Beta 40 and Beta 50 are also bi-wirable.
Selectable monopole/bipole/dipole settings. Beech* Black Ash finishes include black grilles and trim. Cherry and Beech finishes include platinum grilles and trim. The Infinity R.A.B.O.S. kit is included with the CSW-10 subwoofer and optional with the SW-12. *Select models available in Beech. Please check with your local dealer. Infinitys sophisticated 72-point frequency response measurement allows for accurate analysis of the speakers total performance before the listening tests even begin.

Enjoy high or very high

The Beta ES250 is available in white or black.
power. Infinitys proprietary Bass Optimization System is built into the SW-12, while the CSW-10 features our remarkable Room Adaptive Bass Optimization System. The choice is yours. (There are no wrong answers here.)
The incredibly clever Beta ES250 wall-mountable surround-effects speaker offers selectable monopole, bipole or dipole configurations for optimum surround configuration in any home theater system, and with any film or music recording. It even allows you to reproduce two discrete channels from one loudspeaker. Perfect for upgrading to 7 channels using only six speakers.
Beta is Infinitys newest expression of excellence an endlessly versatile and exceptionally capable invitation to innovation.

BETA SYSTEM SPECIFICATIONS.
Beta 10 Frequency Ranges Recommended Amplifier Power Range Sensitivity (2.83V @ 1 meter) Nominal Impedance Crossover Frequency Low-Frequency Driver(s) Mid-Frequency Driver High-Frequency Driver Dimensions (H x W x D) (with grille) Weight 60Hz 20kHz (3dB) 55Hz 40kHz ( 6dB) Watts 88dB 8 ohms 2.8kHz; 24dB/octave 5" (130mm) CMMD , magnetically shielded NA 1" (25mm) CMMD, magnetically shielded 11-13/16" x 7-1/2" x 11-7/16" (300mm x 190mm x 290mm) 14 lb (6.4kg)
Beta 20 58Hz 20kHz (3dB) 52Hz 40kHz ( 6dB) Watts 90dB 8 ohms 2.4kHz; 24dB/octave 6-1/2" (165mm) CMMD , magnetically shielded NA 1" (25mm) CMMD, magnetically shielded 13-3/4" x 8-7/8" x 13" (350mm x 225mm x 330mm) 20.7 lb (9.4kg)
Beta 40 45Hz 20kHz (3dB) 40Hz 40kHz ( 6dB) Watts 91dB 8 ohms 600Hz, 3.2kHz; 24dB/octave Dual 6-1/2" (165mm) CMMD , magnetically shielded 5" (130mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 37" x 9-13/16" x 13-1/8" (950mm x 250mm x 333mm) 50.2 lb (22.8kg)
Beta 50 35Hz 20kHz (3dB) 30Hz 40kHz ( 6dB) Watts 91dB 8 ohms 600Hz, 3.3kHz; 24dB/octave Dual 8" (200mm) CMMD , magnetically shielded 5" (130mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 41-5/16" x 10-7/16" x 14-11/16" (1050mm x 265mm x 372mm) 62.5 lb (28.4kg)
SW SERIES POWERED SUBWOOFERS
Add an Infinity Sub to Maximize Bass Impact and Excitement.
Beta C250 Frequency Range (3dB) Recommended Amplifier Power Range Sensitivity (2.83V @ 1 meter) Nominal Impedance Crossover Frequency Low-Frequency Driver(s) Mid-Frequency Driver High-Frequency Driver Dimensions (H x W x D) (with grille) Weight 55Hz 20kHz (3dB) Watts 90dB 8 ohms 2.4kHz; 24dB/octave Dual 5" (130mm) CMMD , magnetically shielded N/A 1" (25mm) CMMD, magnetically shielded 6-11/16" x 17" x 8-3/8" (170mm x 430mm x 212mm) 16 lb (7.3kg)
Beta C360 45Hz 20kHz (3dB) Watts 91dB 8 ohms 500Hz, 3.2kHz; 24dB/octave Dual 6-1/2" (165mm) CMMD , magnetically shielded 4" (100mm) CMMD, magnetically shielded 1" (25mm) CMMD, magnetically shielded 8-1/2" x 25-5/8" x 11-3/4" (215mm x 650mm x 298mm) 34.5 lb (15.7kg)

Beta ES250 60Hz 20kHz (3dB) watts 87dB Frequency Response 8 ohms 2.8kHz; 24dB/octave Dual 5" (130mm) CMMD N/A Dual 1" (25mm) CMMD 13-3/4" x 11-13/16" x 6-7/8" (350mm x 300mm x 175mm) 12.5 lb (5.7kg) Driver Dimensions (H x W x D) Weight
CSW-10 22Hz 150Hz (3dB) 20Hz 150Hz (6dB) 650 watts RMS
SW-12 28Hz 150Hz (3dB) 24Hz 150Hz (6dB) 500 watts RMS
Maximum Amplifier Output (20Hz 150Hz with no more than 0.1% THD) Crossover Frequencies
50Hz 150Hz, 24dB/octave, continuously variable 250mm (10") CMMD 14" x 13-1/4" x 15-3/8" (356mm x 337mm x 391mm) 52 lb (23.6kg)
50Hz 150Hz, 24dB/octave, continuously variable 305mm (12") CMMD 16-3/4" x 14-7/8" x 19-7/8" (425mm x 378mm x 505mm) 45 lb (20.5kg)
250 Crossways Park Drive, Woodbury, NY 11797 USA 516.674.4INF Fax 516.682.3523 www.infinitysystems.com 2003 Harman International Industries, Incorporated Printed 12/03 Part No. BETALIT12/03 Designed, edited and digitally produced by Harman Consumer Group Marketing & Design Center, Woodbury, NY
Infinity is a registered trademark, and Infinity Beta, CMMD, Constant Acoustic Impedance, CAI, Bass Optimization System, Room Adaptive Bass Optimization System, R.A.B.O.S. and Prelude are trademarks, of Harman International Industries, Incorporated. Ceramic Metal Matrix Diaphragm (CMMD) patent nos. 6,327,372 and 6,404,897. Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details herein are therefore subject to change without notice.