Infinity SW-12 Subwoofer
Contents
1. low frequency calibration system The subwoofer one and if so what it is First play a variety of music and contains a parametric equalizer that you can adjust following the films with energetic bass sounds like bass guitar kick drum directions below By following these instructions you can improve keyboards etc A kick drum should produce a tight thump not a the sound of your system flabby boom Bass m elody or armony lines should have notes that are about equally loud If some notes disappear or stand out The Bass Optimization System Goal because they are consistently too loud there is a problem It is a fact of audio that what we hear at low frequencies is Disappearing notes have to be handled by moving the listening determined as much or more by the listening room than by the position or the loudspeakers to slightly different locations Often but sadly not always this will be enough Excesses in bass tend to be most annoying and energetic resonances that cause boomy or lumpy bass can be truly aggravating over a period of time Infinity s Bass Optimization System can fix this loudspeaker itself Placement of the loudspeakers and listeners and the acoustical characteristics of the room surfaces are all important determinants of bass quantity and quality In most practical situations there is little that can be done about this except for patient trial and error repositioning of the loud spea2. subwoofer LEFT SPEAKER RIGHT SPEAKER If your receiver processor has subwoofer outputs for the left and right channels Set Normal LFE Switch to Normal RECEIVER PROCESSOR SUB OUT BLACK 0 1 LOOSEN TERMINALS 2 INSERT BARE END D TIGHTEN TERMINALS STRIPE 4 POWER N WA NO STRIPE e Set Normal LFE Switch to Normal NOTE Some receivers have a single subwoofer output do not confuse this with a single LFE output as described below In that case it is recommended that you use aY connector not included to maximize performance C3 swt OPERATION Power On Plug your subwoofer s AC cord into a wall outlet Do not use the outlets on the back of the receiver Initially set the Subwoofer Level Volume Control to the min position Turn on your sub by pressing the Power Switch on the rear panel Auto On Standby With the Power Switch in the ON position the Power Indicator LED will remain backlit in red or green to indicate the On Standby mode of the subwoofer RED STANDBY No signal detected Amp Off GREEN ON Signal detected Amp On The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system The subwoofer will then power ON instantly when a signal is detected During periods of normal use the Power S
3. A a eoaono 9 Do not defeat the safety purpose of the 4 polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third Figure A grounding prong The wide blade or the third Example of Antenna Grounding as per prong are provided for your safety If the provided National Electrical Code ANSI NFPA 70 plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on ovens Lead In Wire or pinched particularly at plugs convenience Ground Clampt receptacles and the point where they exit from the D apparatus Antenna Discharge Unit NEC Section 810 20 D 11 Only use attachments accessories specified by Grounding Conductors NEC Section 810 21 the manufacturer D h Electric Service Equipment0O 12 Use only with the cart stand D tripod bracket or table specified aout Clamps by the manufacturer or sold with the apparatus When a cart is Power Service Grounding Electrode SystemO ae NEC Art 250 Part H CD swi SW 12 Owner s GUIDE Table of Contents Important Safety Precautions Unpacking the Subwoofer Placement Controls and Connections Connections Operation Bass Optimization System Maintenance and Service Specifications SW 12 Infinity SW 12 The Infinity SW 12 continues Infinity s long s
4. OCK DO NOT OPEN WARNING To REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK D DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE O D AVERTISSEMENT POUR PR VENIR LES RISQUES D INCENDIE OU D DE CHOC LECTRIQUE VITER D EXPOSER CET APPAREIL ALA D PLUIE OU A LIHUMIDITE D D PIN 352153 001 Infinity SystemsO Northridge CA USA H A Harman International Company ACO 120V 60HZO 500W Bass Optimization Controls see page 5 0 Phase Switch Bass Optimization System Selector Q Normal LFE Selector Center Frequency Adjustment Power Indicator Bass Optimization System Level Adjustment Crossover Adjustment Bass Optimization System Bandwidth Adjustment Subwoofer Level Volume Control Line Level Inputs High Level Speaker Inputs High Level Speaker Outputs Power Switch SW 12 CONNECTIONS If you have a Dolby Digital or DTS receiver processor If your receiver amplifier does not have subwoofer with a low frequency effects LFE output outputs for the left and right channels or an LFE output SUBWOOFER OR LFE OUTPUT wA RECEIVER AMPLIFIER Front Speaker Output LEFT RIGHT m e Set Normal LFE Switch to LFE NOTE In this case you do not need to use a Y connector Simply connect the LFE output on your receiver processor to either the left or right input on the
5. WINfinity Powered Subwoofer SW 12 Owner s Guide 120V IMPORTANT SAFETY PRECAUTIONS Read First used use caution when moving the cart apparatus 18 An outside antenna system should not be CAUTION combination to avoid injury from tip over located in the vicinity of overhead power lines RISK OF ELECTRIC SHOCK 13 Unplug this apparatus during lightning storms or other electric light or power circuits or where DO NOT OPEN or when unused for long periods of time it can fall into such power lines or circuits When installing an outside antenna system extreme CAUTION To reduce the risk of electric shock 14 Refer all servicing to qualified service care should be taken to keep from touching such do not remove cover or back personnel Servicing is required when the power lines or circuits as contact with them No user serviceable parts inside apparatus has been damaged in any way such might be fatal Refer servicing to qualified service personnel as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the CAUTION To prevent electric shock p 1 i do not use this polarized plug with apparatus the apparatus has been exposed to rain Of integral convenience receptacles as this can an extension cord receptacle or other outlet or moisture does not operate normally or has result in a risk of fire or electric shock unless ine saaran be tully inserted to been dropped 20 Never push objects of
6. any kind into this EERE product through openings as they may touch hel A amona the product manufacturer as they may cause dangerous voltage points or short out parts that within an equilateral triangle is intended to P alert the user to the presence of uninsulated hazards could result in a fire or electric shock Never dangerous voltage within the product s spil liquid of any kind on the product enclosure that may be of sufficient magnitude to constitute 16 This product should be operated 0 ly from the a risk of electric shock to persons The exclamation point within an equilateral type of power source indicated on the marking 19 Do not overload wall outlets extension cords 15 Do not use attachments not recommended by The lightning flash with arrowhead symbol 21 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified service personnel triangle is intended to alert the user to the label If you are not sure of the type of power presence of important operating and maintenance servicing instructions in the supply to your home consult your product dealer literature accompanyingyihe appliance or local power company For products intended to operate from battery power or other sources 22 When replacement parts are required be sure refer to the operating instruct
7. ic is playing sit in your favorite chair and have somebody else slowly adjust the Center Frequency control from fully clockwise to fully counterclockwise At a certain frequency you should hear the problem lessen and the overall bass performance improve When you are satisfied that you have found the best frequency have your assistant vary the Level slowly up and down until you have maximized the improvement If you have really keen ears you can also have the Bandwidth Adjustment control adjusted for maximum benefit Preparations Before beginning the bass tests please check the following e Make sure all three Bass Optimization System controls on the subwoofer are turned fully clockwise e Make sure the loudness contour if any on your receiver processor preamp is turned off e Set the receiver s processor s tone controls Bass and Treble to their center or flat positions Bypass all surround and effects features of your receiver processor preamp or set to Stereo Bypass e If you are using a multichannel surround processor or receiver make sure all bass management features are properly set The Audio channels should all be set to Small or High Pass and the subwoofer set to On e Set the Bass Optimization System Selector to On H While the Bass Optimization System allows the listener to fine tune the bass response to sound best in a particular room some listener
8. ions the service technician has used replacement 1 Read these instructions 17 If an outside antenna or cable system is parts specified by the ma ufacturer or that have 2 Keep these instructions connected to the product be sure the antenna or the same characteristics as the original part 3 Heed all warnings cable system is grounded so as to provide some Unauthorized substitutions may result in fire protection against voltage surges and built up electric shock or other hazards 4 Follow all instructions static charges Article 810 of the National 23 Upon completion of any service or repairs 5 Do not use this apparatus near water Electrical Code ANSI NFPA 70 provides to this product ask the service technician to 6 Clean only with a dry cloth information with regard to proper grounding of perform safety checks to determine that the 7 Hon tblock any vertllaion openings instal ih the mast and supporting structure grounding of product is in proper operating condition accordance with the manufacturer s instructions the aan wire toan antenna discharge tune 24 he product should be mounted to a wall or grounding conductors location of antenna ceiling only as recommended by the manufacturer 8 Do not install near any heat sources such as radiators heat registers stoves or other apparat including amplifiers that produce heat scharge unit connection to grounding ectrodes and requirements for the grounding ectrode See Figure
9. kers and listeners Usually the practical constraints of a living space and the impracticality of massive acoustical treatment mean that equalization is the only practical solution So the first step is to exercise your music collection and listen for low frequency problems that crop up in several different recordings Something that only happens in one recording is likely to be a problem in the recording it happens If you identify something that is consistently wrong select a record that shows it very clearly and put your CD DVD player into a repeat mode A B repeat is especially helpful because you can isolate a short musical passage Professional sound engineers routinely employ sophisticated measurement systems and equalizers to optimize speakers to the installation This was never practical for the home audiophile This is why the Bass Optimization System was created It enables you to identify the dominant low frequency response characteristic of your room Once you know the problem the Bass Optimization System provides the tools needed to optimize the low frequency characteristics of the speakers to the room they are in exactly as the professional sound engineers do it Set the Bass Optimization System Bandwidth Adjustment Control to a middle position 10 clicks from a fully clockwise position and set the Level Adjustment for a 6dB 8 clicks from a fully clockwise position Then while the mus
10. nfinity 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 SW 12 NOTES Olinfiniky TECHNOLOGY lt PERFORMANCE lt DESIGN Infinity Systems 250 Crossways Park Drive Woodbury NY 11797 USA 516 674 4INF 4463 www infinitysystems com Trademark of Dolby Laboratories DTS is a registered trademark of Digital Theater Systems Inc Infinity is a registered trademark and CMMD and Bass Optimization System B 0 S are trademarks of Harman International Industries Incorporated Ceramic Metal Matrix Diaphragm patent nos 6 327 372 and 6 404 897 Part No 352614 001 2003 Harman International Industries Incorporated H A Harman International Company
11. nto the Bass Optimization System controls located on the speaker The entire process takes less han twenty minutes If your dealer does not stock the Bass Optimization System test and measurement kit you may purchase it directly from Infinity U S residents can visit our Web site at www infinitysystems com or call 1 516 674 4INF MAINTENANCE AND SERVICE The enclosure and grille may be cleaned using a soft cloth to remove fingerprints or to wipe off dust All wiring connections should be inspected and cleaned or remade periodically The frequency of maintenance depends on the metals involved in the connections atmospheric conditions and other factors but once per year is the minimum If a problem occurs make sure that all connections are properly made and clean In the event that your Infinity SW 12 subwoofer ever needs service contact your local Infinity dealer or Infinity directly at 1 516 674 4INF USA only or www infinitysystems com for a service center near you sw 12 C SPECIFICATIONS SW 12 Frequency Response 28Hz 150Hz 3dB Maximum Amplifier Output 500 watts RMS 20Hz 150Hz with no more than 0 1 THD Crossover Frequencies 50Hz 150Hz 24dB octave continuously variable Driver 12 305mm CMMD Dimensions H x W x D 16 3 4 x 14 7 8 x 19 7 8 425mm x 378mm x 505mm Weight 45 Ib 20 5kg Optional Accessory Bass Optimization Test amp Measurement Kit Part Number 335852 002 I
12. s don t have the skill or desire to adjust their system by ear In order to facilitate quicker and more accurate results Infinity has developed an optional test and measurement kit that allows the user to perform a series of measurements and aids him her in properly setting the Bass Optimization System controls With the addition of this kit the Bass Optimizatio System becomes truly room adaptive The kit consists of the following a test CD a sound level meter that is specifically calibrated for low frequencies and something we call a Q Finder a device to help find the width of the measured curve and finally a measurement template It works as follows The listener For best results it is recommended that all major furnishings are in place and that all doors and windows in the listening area are in their normal positions That is if you normally listen to music with all doors closed then this is how they should be during this procedure C sw plays the tones from the test CD and records the relative output level of each test tone using the sound level meter on the provided measurement template After all the tones are complete he template contains a response curve for the frequencies below 100Hz The user simply notes the frequency of the largest bass peak calculates the correct amount of attenuation and ses the Q Finder to determine the width of the curve These hree values are dialed i
13. ss response is always there but never obtrusive Crossover Adjustments NOTE This control will have no effect if the Normal LFE Selector Switch is set to LFE If you have a Dolby Digital or DTS processor receiver the Crossover Frequency is set by the processor receiver Consult your owner s manual to learn how to view or change this setting The Crossover Adjustment Control determines the highest frequency at which the subwoofer reproduces sounds If your main speakers can comfortably reproduce some low frequency sounds set this control to a lower frequency setting between 50Hz and 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies set the Crossover Adjustment Control to a higher setting between 120Hz and 150Hz Phase Control The Phase Switch determines whether the subwoofer speaker s piston like action moves in and out with the main speakers 0 or opposite the main speakers 180 Proper phase adjustment depends on several variables such as room size subwoofer placement and listener position Adjust the phase switch to maximize bass output at the listening position SW 12 Bass OPTIMIZATION SYSTEM Infinity s Bass Optimization System is a simple to use yet To solve a problem it helps to first identify whether you have sophisticated
14. t is generally believed by most audio authorities that low frequencies below 125Hz are nondirectional and therefore placement of a subwoofer within any listening room is not critical While in theory it is true that the larger wavelengths of extremely low frequencies are basically nondirectional the fact is that when installing a subwoofer within the limited confines of a room reflections standing waves and absorptions generated within the room will strongly influence the performance of any subwoofer system As a result the specific location of the subwoofer becomes important and we strongly recommend that you experiment with placement before choosing a final location Placement will depend upon your room and the amount and quality of bass required for example whether or not your room permits placement of the subwoofer near either satellite Ci SWA lt SUB C lt RIGHT CHANNEL SPEAKER PRIMARY LISTENING AREA Figure 1 This example shows the subwoofer positioned behind the right channel satellite speaker to re create the actual location of bass instruments in an orchestra and or add impact to movie soundtracks CONTROLS AND CONNECTIONS Rear Panel BASS OPTIMIZATION SYSTEM 6 6 FREQUENCY LEVEL WIDTH 180 Jorma 1 O PHASE F CO GREEN ON 6 OFF Pa RED STANDBY e Pi WW 8 A fi 5 CROSSOVER ria NV NY NI eo D LINE LEVEL IN R L SW 12 CAUTION RISK OF ELECTRIC SH
15. tanding commitment to accurate sound reproduction Our patented Ceramic Metal Matrix Diaphragm CMMD drivers high powered amplifier and proprietary Bass Optimization System along with a rigid well braced enclosure combine to deliver uncompromised bass performance in any stereo or multichannel home theater Unpacking the Subwoofer If you suspect damage from transit report it immediately to your dealer Keep the shipping carton and packing materials for future use PLACEMENT Since the installation of a subwoofer can be somewhat more complicated than installing full range speakers it is essential that you read this section very carefully prior to connecting the subwoofer to your system Should you have questions relating to your installation it is advisable to call either your dealer or Infinity s Customer Service Department for advice The performance of the subwoofer is directly related to its placement in the listening room and how you align the subwoofer with its satellite speakers Setting the volume of the subwoofer in relationship to the left and right speakers is also of critical importance because it is essential that the subwoofer integrate smoothly with the entire system Setting the subwoofer s volume level too high will result in an overpowering boomy bass Setting the volume level too low will negate the benefits of the subwoofer Here are several additional facts on installation that may prove useful I
16. witch can be left on You may turn off the Power Switch for extended periods of nonoperation e g when you are away on vacation Adjust Gain Turn on your entire audio system and start a CD or movie soundtrack at a moderate level Turn up the Subwoofer Level Volume Control about half way If no sound emanates from the subwoofer check the AC line cord and input cables Are the connectors on the cables making proper contact Is the AC plug connected to a live receptacle Has the Power Switch been pressed to the On position Once you have confirmed that the subwoofer is active proceed by playing a CD record or cassette Use a selection that has ample bass information Set the overall volume control of the preamplifier or stereo to a comfortable level Adjust the Subwoofer Level Volume Control until you obtain a pleasing blend of bass Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range Many users have a tendency to set the subwoofer volume too loud adhering to the belief that a subwoofer is there to produce lots of bass This is not entirely true A subwoofer is there to enhance bass extending the response of the entire system so the bass can be felt as well as heard However overall balance must be maintained or the music will not sound natural An experienced listener will set the volume of the subwoofer so its impact on ba
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