Infinity Modulus II System
Contents
1. SN 4 S 24 eee 22 aces 25254 22244 2503 lt x eS SSO FIGURE 9 SEKI Sood lS K w lS l SOS 2242624222 Oe SxS x S g SxS 2 RSSRSS 2614222222 SILS 2252 lt gt KX lt gt gt lt gt x gt gt gt x lt gt sO S O Q A 2 LSSI SOS lt gt COMMU LOG KK S S 22262 x KSC IIIS OIII 2022002222 P lt 2 lt gt S SOS S555 SESSILIS SS sO lt gt lt lt gt x 2 lt lt gt SERRE LSS XX 2022225292 SRR O02090 90905200929 SRR ORKK KG S SSS 4445 SSS SRRKRRKS LOSOCO SS SOR RRS gt x q Nee lS KRG lS 2 SISS 2292303 ISSS SRG SRK o x lt 8 lS x lt gt lt lS lS lS l 99S lS OK x Se x SSS aces 22 x 5 x eres SKY 29 0 0 sess SRK lt ISSIS SS LRLS lS 22 l SSS SRE 202202 202922 3 2 ee x S50 no w gt lt gt 2 SOR KKK 200272 ace 2 2 92 lt gt lt gt CO lt gt lt gt 3233 S55 lt gt lt gt SSS 2 RLY S05 SKK OSS O55 L Q 2 QQS lt gt lt gt x lt gt S x COLL UOMO x lt 2 22 CCC lt R ces SLS LS x X l ce S x ee oe lt gt S oo x SLL SOO SOS 0444444445 2525252525 SESSIO 2S2 SOROS COMM LM C2. Controls Freq wiath Level The table below illustrates all switch positions Adjust the controls as indicated by the Measurement Template Each value shown in the table is represented by detents in the R A B 0 S controls Simply count the number of detents necessary indicated by the results of your R A B 0 S Test After performing these adjustments you may skip forward to the Final System Balance section It is recommended that you perform a second measurement to confirm that the settings are correct If you are going to retest the system after EQ adjustments repeat the Setting the Subwoofer Test Level section on p 11 Retesting the system will go much faster if you use Tracks 27 50 These tracks contain all the same test tones you just used However each tone plays for only a few seconds and there is no frequency announcement If you are uncomfortable Operating at this pace you may of course perform measure ments with the original test tracks Your first interpretation of the data and choice of settings may not be optimum You can repeat the test adjust test cycle as often as needed to get the desired results To do this return to page 11 Setting the Subwoofer Test Level You may prefer to retest using the same template Doing so makes it easy to evaluate the improvement When you are Satisfied with the results go to Final System Balance Final System Balance Cu
3. 4 Modulus II Wall Mount Brackets Attached to Base of Satellites 0 e oe eee e 1 Wall Mount Bracket With Bubble Level for Use as Mounting Template oQ Dao m Hex Wrench Located Behind Rubber Cap of Satellite Base Warranty Statement 1 R A B O S Kit Containing 1 i Eee D Sound Level Meter R A B 0 S Test CD Graph Templates Bandwidth Selector MODULUS H HOME THEATER SYSTEM PLANNING YOUR SYSTEM Before deciding where to best place your speakers survey your room and study Figures 1 and 2 Subwoofer Left Right Front O O Front Center Channel Channel Channel Left Right Surround Surround Channel Channel FIGURE 1 In this overhead view of a typical installation satellite Speakers are used to reproduce sound for the front and surround channels The center channel reproduces sound and dialogue The powered subwoofer provides bass for effects and music Infinity Subwoofer Ri ght optional D Front i Channel Center Channel Right Surround Left Channel Front Channel Left Surround Channel O Figure 2 This figure shows an alternative layout which may be more suitable for some rooms MODULUS H HOME THEATER SYSTEM PLACEMENT NOTE The satellite speakers can be placed directly on a shelf Or mounted on a wall using the built in base bracket Front Left and Right Ch
4. L R 26 20Hz Test 51 Wide Band Pink Noise Uncorrelated 2 Intro to Quick Retest 58 1 to 4kHz Pink Noise Left 28 Quick Retest 100Hz 59 1 to 4kHz Pink Noise L R 29 Quick Retest 95Hz 60 1 to 4kHz Pink Noise Right 30 Quick Retest 90Hz 61 1 to 4kHz Pink Noise Left R 31 Quick Retest 85Hz 62 1 to 4kHz Pink Noise Uncorrelated Tracks 53 62 of the R A B 0 S Test CD are test tones that can be used for general diagnostics of your system They are not used for R A B 0 S settings The R A B 0 S Sound Level Meter RSLM The RSLM is a battery operated handheld acoustic measurement device specifically designed for Infinity R A B 0 S On the face of the instrument is a light emitting diode LED bar graph that indicates relative sound level There are also indicators for power on out of range signals and a low battery R A B 0 S Sound Level Meter Wlnfinity FIGURE 12 MODULUS II HOME THEATER SYSTEM RSLM bar graph indications ES mea 3 Z A ra Eg E ed e Es K h m E a i H H ea Eo D T mie Ki a Bil TH EH FaH Fap On Measurement Over range Lo Under range In range Battery FIGURE 13 Power On Low Signal This is indicated by the illumination of any LED on the bar graph If the sound level in the room is below the measurement range of the instrument a green LED near the bottom of the bar graph will be illuminated Normal Measurements When the sound level is within the
5. dots as shown in Figure 20 This will make interpretation of the data much easier Test example with dots connected FIGURE 20 R A B 0 S Online Now that you have obtained the data necessary to make final adjustments a few more calculations are required to determine the ideal position of the three bass optimization controls These calculations are covered in detail and are available for your reference in the remaining pages of this owner s guide It is recommended that you read through to get a better understanding of the functions and benefits of R A B 0 S However if you have access to the Internet you may choose to Skip to Adjusting the R A B 0 S Equalizer on page 18 and have your settings calculated by Infinity s online R A B 0 S calculator You can find this in the Product Support or R A B 0 S Online section of our Web site at www infinitysystems com What Does a Parametric Equalizer Do The R A B 0 S system uses one band of parametric equalization for response correction Parametric equalizers are the most versatile class of filters The effect an equalizer will have on the signal is dependent on three parameters Frequency The equalizer will have maximum effect at one frequency usually described as the center frequency Level This refers to the amount of cut in dBs the equalizer iS set for Bandwidth Defines the range of frequencies over which the equalizer will have an effect On the Mod
6. out Allen wrench Use Allen wrench to remove mounting plate screw and remove mounting plate from base FIGURE SOOTY En FERRER RRR RRR KRONOR ILRES SOSS T ERRER OSOS ZERRE SR ERROR RRR RIP IDOLOS INAS FSI SS xo wenn Adjustment Allen Wrench Housed in Base Rubber Cover Speaker Mounting Plate Screw Mounting Plate 2 Secure the mounting plate to a wall stud using 4 8 32 wood screws with a minimum 1 1 4 length If fastened to wallboard with a minimum 1 2 depth use 8 screws with plastic inserts or anchors Do not mount directly to wallboard without plastic inserts or anchors designed for 8 screws One of the mounting plates in the Modulus II system has a built in bubble level This mounting plate should be used as a template for mounting the mounting plates that do not include a bubble level 2a In cases where you would like to run the speaker wires through the wall the mounting plate has a center hole for wire access FIGURE 8 WALL Bubble Level Hole in the Wall 8 32 Wood Screws Not Included MODULUS H HOME THEATER SYSTEM 3 Run speaker wires through base as shown below Attach base to mounting plate by slipping the returns on underside of base into slots on the top of the mounting plate and hinging the base downward Secure base by inserting and tightening mounting plate screw Tighten adjustment screw fixing the speaker into position
7. range of the RSLM the green LED will be off and one of the red LEDs in the bar graph will be illuminated indicating the relative sound level in decibels dB Over Range If the sound level exceeds the range of the meter OqB through 5 will all light simultaneously Low Battery When the battery voltage is too low for accurate measurements an LED at the bottom of the bar graph will be illuminated Replace the battery Do not attempt measurements when this light is on RSLM Placement Determine where in the room you are most likely to sit when listening to music or watching a movie This is where you will want to hold the RSLM during measurements The RSLM should be oriented so it can be easily read and held at your seated ear level during tests You must use this same position for all tests B The RSLM can be mounted on a standard camera tripod This will ensure the best results Initial System Level Setting The following steps will set the playback level of the system to the correct level for all tests that follow Turn the system volume to minimum Cue the R A B 0 S Test CD to Track 2 and press Pause II This track will produce band limited pink noise in both the left and right channels Press Play p gt With the RSLM positioned as described above increase the system volume until the RSLM display indicates 10dB See Figure 14 RSLM Indicating the correct system level to begin tests 10dB When you h
8. slope of the Width Selector In this example this is 56Hz Calculate the average level of the readings from 56Hz up to 100Hz that is 10 data points in this example st sty 66Hz 72Hz 71Hz 80Hz 85Hz 90Hz 95Hz poor 9 10 8 9 10 91 81 10 10 91 92 10 9 2 Whenever your answer has a remainder always round down disregarding the negative to the next whole number In our example you would enter 9 in the attenuation field This may not be the best method in all cases The next section contains several other examples What You Measure What To Do As stated earlier it is not possible to anticipate the effect of every possible listening environment However most residential sound rooms share many characteristics and their dimensions fall into a range that makes some response irregularities far more likely than others On the following pages are examples of what you may encounter Following each example Is a strategy for correction Compare your measurement results with the following examples Find the one that best fits your graph and follow the instructions presented for that scenario Remember when looking for a match look at the descriptive characteristics not any specific frequency or level Each of these examples can occur at any frequency bandwidth and level It is unlikely that your test results will be exactly as depicted in these examples Example 1 Single Dominant Peak
9. MD magnetically shielded 6 1 4 x 20 3 4 x 4 1 2 159mm x 527mm x 114mm 8 3 Ib 3 8kg _ R A B O 5 Measurement Template F b w yon k bhag Laval 16 207122 24 JE 30 35 3240 33 46 4652 EE S356 Ti FTED BF G0 95 10H Frequency Frequency Hz level dB Width _ R A B O 5 Measurement Template F b w w ii k bhaag Laval 16 207122 24 E 30 35 3240 33 46 57 EE S356 TT FTTED BF DD 95 10H Frequency Frequency Hz level sd B Widh_ MODULUS H HOMETHEATER SYSTEM _ R A B O 5 Measurement Template 2g sf a 5 A a 10 12 4 Lavel 16 207122 24 26 30 359640 49 46 4952 56 8356 72 778D 85 SD 95 100He Frequency Frequency HZ Leve dB W idth _R AB 0 5 Measurement Template Ode sf 2 3 4 4 TT i 10 12 14 Level 16 207122 24 26 30 35 9640 49 46 4952 56 83956 72 778D 85 SD 95 100Hz Frequency Frequency _ Hz Level dB Widh_ MODULUS H HOMETHEATER SYSTEM NOTES MODULUS H HOME THEATER SYSTEM Yinfinity TECHNOLOGY PERFORMANCE DESIGN 2003 Harman International Industries Incorporated Infinity Systems 250 Crossways Park Drive Woodbury NY 11797 USA 800 553 3332 USA only www infinitysystems com Trademarks of Dolby Laboratories DTS is a registered trademark of Digital Theater Systems Inc Infinity and Modulus are registered trademarks and CMMD patent nos 6 327 372 and 6 404 897 is a trademark of Harman Interna
10. OMI UMA OOOO UO OO QIS S ISSS RR lt gt OM SK 229 3 LLL SON ese e 229 lt gt oe o ls ace LSS 9O 200902 lS 2 X ee KKKKKKKS SRERKY ese lt ee 2 x l oS lS 3 SxS nes SS x SS x x S 2020292929 LK lt gt gt lt 2 KS x oo x SS l x w lt x SS ee 202 me ne x x neces 2 K lt SKK O00909 2 ees SS lS SOS lt 2 8 2 SSS x Returns on Underside of Base x LSS SS ISSS x SLS SSSI ox x S NZ 2009 2 lt gt LX SSS SSS SLL 2625252 2625252 2050002 oS SSS S 22 SKK 202009 SKK SSS KKK Renate LLS lt gt Z x L lS lS X l S SoS lS S lt ese SxS SSS KX ISL gt lt gt lt SSS 22623299S lS oO zz SSS SG SKK SSS SG 0000009 ROS x 8 SOONG SRK SOO 2 QO lt lt 8 Ae SS Kx SOS sate i KOSS lt x RRO SS SSS 2 2222242222 RRS lt lt x x Ae X 92 BOSS S525 QS 25252 2S2 SISSE S VAS KAS RRR KR o K LS 22 So So 292922 Z LUS Rubber Cover Allen Wrench Speaker Wires Note Base Has Returns That Grab Mounting Plate 4 Insert the Allen wrench back into holder in base and attach rubber cover CENTER AND SATELLITE SPEAKER CONNECTIONS Turn Off All Power After placi
11. PR VENIR LES RISQUES D INCENDIE OU DE CHOC LECTRIQUE VITER D EXPOSER CET APPAREIL A LA PLUIE QU A L HUMIDIT FUS AC 120V 60Hz T5A L 250V 75 Watts Set Low Pass Filter to Off If your receiver processor has subwoofer Outputs for the left and right channels RECEIVER PROCESSOR SUB OUT Infinity Systems H A Harman International Company R A B 0 S Controls Modulus MSW II This unit is designed to become quite warm during normal operation A RISK OF ELECTRIC SHOCK POWER DD NOT OPEN WARNING SHOCK HAZARD DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURI NRTL C CSA22 2 NO 1 UL 1492 AVERTISSEMENT POUR PR VENIR LES RISQUES D INCENDIE OU DE CHOC LECTRIQUE VITER D EXPOSER CET APPAREIL A LA PLUIE OU A UHUMIDITI USE AC 120V 60Hz F T5A L 250V 75 Watts Set Low Pass Filter to On MODULUS H HOME THEATER SYSTEM OPERATION Surround Modes When using the Modulus II system in a Dolby Pro Logic home theater system make sure the receiver s center channel mode is set to Normal When using the Modulus II system in a Dolby Digital or DTS home theater system make sure the receiver s speaker modes are set to Small Some Dolby Digital equipped receivers processors offer different setup options for each source or surround mode e g CD stereo video
12. SERIES QO INfiniby ll HM HAR SSI Owner s Guide MPORTANT SAFETY PRECAUTIONS Read First CAUTION RISK OF ELECTRIC SHOCK DONOI CPEN CAUTION To reduce the risk of electric shock do not remove cover or back No user serviceable parts inside Refer servicing to qualified service personnel CAUTION To prevent electric shock do not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with a dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the s
13. Selector until you have achieved the best fit The slider now points to the correct width setting In this example this is at 52Hz The best fit width is 28 Fill in the Width and Frequency fields provided on the template Determine the appropriate level using the technique described earlier This calculation will indicate a 8dB setting However this peak does not reach the 0dB level as the lower peak does Therefore a 8dB setting would be excessive The 52Hz peak Stops at 2dB Subtracting 2 from 8 yields the correct setting 6dB Enter 6 in the Level field Skip to the Adjusting the R A B 0 S Equalizer section on page 18 MODULUS H HOME THEATER SYSTEM FIGURE 27 Response dips can occur at any frequency sometimes immediately adjacent to the peak you want to correct Two examples are shown One immediately above and one immediately below the peak Deep response dips such as these are caused by destructive wave interference Destructive interference dips occur only in one spot within the room It is not uncommon to completely eliminate the effect by moving the RSLM to a different location Note that this does not eliminate the dips We have simply moved away from them Sometimes only a few inches are required Do not attempt to correct this condition with equalization If you encounter dips like this take the following steps 1 Select a new test position Cue the test track corresponding to the center frequenc
14. Single dominant peak E ee ee we F T See eee ALA rr FIGURE 25 This is the most common result of speaker room interaction Apply the Width Selector as demonstrated in Figure 23 Align the center line of the Selector over the center of the peak as shown in Figure 23 Now adjust the Selector until you have achieved the best fit The slider now points to the correct bandwidth setting In this example the frequency is 43Hz and the best fit width is 12 5 Fill in the Width and Frequency fields provided on the template Determine the appropriate level using the technique described earlier In this example 9dB would be best Enter the level in the field provided Skip to the Adjusting the R A B 0 S Equalizer section on page 18 MODULUS Il HOME THEATER SYSTEM Example 2 Two Response Peaks Two response peaks Example 3 Peak Adjacent to a Dip Dip above or below peak FIGURE 26 Characterized by two response peaks approximately equal in amplitude and width This requires that you make a choice between the two peaks In situations like this the higher frequency peak will always be more audible and objectionable Response peaks below 45Hz unless extreme can actually be beneficial toward achieving visceral impact Perform corrections on the upper frequency peak Apply the Width Selector as described above Align the center line of the Selector over the center of the higher frequency peak Now adjust the
15. afety purpose of the 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 grounding prong The wide blade or the third prong are provided for your safety If the provided 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 or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified E by the manufacturer or sold with the apparatus When a cart is A used use caution when moving the C Cart apparatus combination to avoid injury from tip over ii MODULUS II HOME THEATER SYSTEM 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Do not use attachments not recommended by the product manufacturer as they may cause hazards 16 This product should be operated only from the type
16. annels For front left and right channels place one satellite to the left and another to the right of the television as shown in Figures 1 and 2 Since the speakers are magnetically shielded you can place them very close to the TV without worrying about the magnetic field distorting the picture Center Channel For the center channel place the speaker directly on top of or below your television Use a shelf if the television does not provide a stable platform Surround Channels For surround left and right channels place one speaker on the left and another on the right to the side of or behind the listening area Subwoofer 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 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 the satellite speakers Setting the volume of the subwoofer in relation to the left and right speakers is also critical 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 lo
17. at the listening position Final Positioning After correctly connecting the Modulus II system and verifying that both the subwoofer and all satellite speakers are playing it is time to optimize the system for your particular listening room Earlier you placed the subwoofer in its general location Finding the exact location for optimum performance sometimes only involves moving the speakers up to a few inches in any direction We urge you therefore to experiment with placement If possible until your speakers deliver their full potential Room ADAPTIVE BASS OPTIMIZATION SYSTEM Infinity R A B 0 S is a simple to use yet sophisticated low frequency calibration system It is designed to work in conjunction with the Infinity Modulus Il self amplified subwoofer The Modulus I Subwoofer contains a parametric equalizer that you will adjust as indicated by the R A B 0 S test results Following these instructions you will optimize the Modulus II subwoofer s response characteristics to complement its environment This will dramatically improve the sound of your system The optimization process takes less than 30 minutes The R A B 0 S Kit Includes the Following Components Specialized Sound Level Meter Test CD Instructions Measurement Templates Width Selector What R A B 0 S Does The Test CD provides specially designed signals you will use while performing measurements The sound level meter provided is used t
18. ave completed this adjustment press Pause Il FIGURE 14 Setting the Subwoofer Test Level B Each of the following test tracks is about one minute long This is normally much longer than required Press Pause I or advance to the next test as soon as you are ready This step will set the subwoofer level for measurement purposes The objective is to scale the subwoofer s output to make full use of the RSLM indicator range Scaling is optimum when a 0dB reading is observed on the highest peak without triggering the over range indication Later you will rebalance the subwoofer to the main speakers The Modulus II subwoofer should be shipped with the three R A B 0 S controls and set to fully clockwise positions and all measurements should be conducted with their level controls in this position Confirm this setting before you begin this test The Level Control should be set to the mid position 5 Cue Track 3 and Pause Il Track 3 continuously steps through all Subwoofer test tones for approximately 1 minute Each tone will play just long enough for the RSLM to give a stable reading To get accurate measurements it is necessary to play the woofers quite loud The OdB indication is about 94dB At this level frequencies below 100Hz can cause doors windows furnishings and other objects in the room to vibrate This frequently results in clearly audible buzzes and or rattles that come and go as each test tone pl
19. ays Strong buzzes not only sound bad they can cause measurement errors If you hear a buzz or rattle during this test it is highly recommended that you locate the source and eliminate its effects This is actually a valuable room diagnostic tool Press Play p gt As Track 3 plays watch the RSLM carefully Watch for peak readings The peak reading may be no more than a brief flash Readjust the subwoofer s Level Control until the peak level observed is OdB without triggering the over range indication See Figure 15 Adjusting the subwoofer levels for a 0dB peak Too Low Correct Too High Level FIGURE 15 When finished press Pause II Performing Low Frequency Measurements Read the following instructions fully before beginning tests For the following steps you will need a Measurement Template and a pencil R A B 0 S measurement template R360 5 eos Tere Deas 485 HE M MATA T ee F ram sa m p FIGURE 16 MODULUS H HOME THEATER SYSTEM Each of the following tracks produces a low frequency test tone The range of these tests is from 100Hz down to 20Hz The frequency of each test is announced before it begins The first test is the highest frequency 100Hz therefore you will be marking the template from right to left Each frequency point is listed across the bottom of the Measurement Template this is called the X axis See Figure 16 on the previous page The vertical scale on the left side of the t
20. e Track 51 of the R A B 0 S Test CD Press Play p Increase the system volume until the RSLM indicates 10dB Now play Track 52 Adjust the subwoofer gain control until 10dB is indicated on the RSLM Of course you may fine tune the Subwoofer gain control to your listening preference This concludes the R A B 0 S process It is recommended that you remove the battery from the RSLM Store the Test CD Width Selector Adjustment Key and the RSLM together MAINTENANCE AND SERVICE The satellite and subwoofer enclosures may be cleaned using a soft cloth to remove fingerprints or to wipe off dust The grilles may be gently vacuumed Stains may be removed with an aerosol cleaner following its instructions Do not use any solvents on the grille 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 If a problem exists in one loudspeaker reverse the connection wires to the left and right system If the problem remains in the same speaker then the fault is with the loud speaker If the problem appears in the opposite speaker the Cause is in another component or cable In the event that your Modulus Il loudspeaker system ever needs service contact your local Infinity dealer or Inf
21. ect the black terminals in the same way Important Do not reverse polarities i e to or to when making connections Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment Center Channel rear view Loosen I Insert Bare Terminal End Tighten Terminal FIGURE 11 The satellites and center channel speaker feature terminals that can be connected in several different ways e g banana plugs spade terminals and direct wiring as shown here MODULUS M HOME THEATER SYSTEM SUBWOOFER CONTROLS Rear Panel Infinity Systems H A Harman International Company R A B O S R A B 0 S 1 Ca Controls Freq ON OFF PHASE O 180 Ca 0 wiath O LOW PASS o N OFF Level O o R Vinfiniy Modulus MSW II This unit is designed to become quite warm during normal operation NRTL C CSA22 2 NO 1 UL 1492 POWER FUSE AC 120V 60Hz TSA L 250V 75 Watts Front Panel 6 MODULUS Ii HOME THEATER SYSTEM R A B 0 S On Off Switch Center Frequency Adjustment Room Adaptive Bass Optimization System Bandwidth Adjustment R A B 0 S Controls See p 9 for complete R A B 0 S Level R A B 0 S instructions Phase Switch Low Pass Filter Selector Line Level Inputs Power Switch Subwoofer Level Control A Few Suggestions We recommend that
22. emplate indicates relative level in dBs the Y axis The template s vertical scale matches that of the RSLM bar graph Cue Track 4 and Pause ll B From now on you will want to keep your CD player s remote control handy Press Play B As Track 4 plays observe the level indicated on the RSLM EXAMPLE The test frequency is 100Hz and the level indicated is 2dB Find the intersection of 100Hz X axis and 2dB Y axis Place a dot at that point See Figure 17 Locating a test point 7780 85 00 6 100Hz FIGURE 17 It takes a few seconds for the RSLM reading to stabilize especially at very low frequencies Don t rush Give each test adequate time for the meter to stabilize At the bottom of the bar graph is a green ON LED This LED is illuminated whenever the sound level is below the measuring range of the RSLM If this occurs during a test place a dot at the intersection of the test frequency and the bottom frame of the template See Figure 18 Indicating an under range test FIGURE 18 MODULUS H HOME THEATER SYSTEM When finished press Skip ppl to advance to the next test Repeat the process described above for Tracks 5 through 26 When you have completed the 23 measurements you are ready to analyze the data and make corrective adjustments The completed Measurement template will look something like the example in Figure 19 Completed R A B 0 S template FIGURE 19 Now connect the
23. eptacle Has the Power Button been pressed to the On position Note The Level Control on the front panel will turn green when the power is on Once you have confirmed that the subwoofer is active proceed by playing a sound source Use a selection that has ample bass information MODULUS H HOME THEATER SYSTEM Set the overall volume control of the preamplifier or stereo to a comfortable level Adjust the subwoofer s Level 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 bass response is always there but is never obtrusive 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
24. he Selector using the thumb and forefinger of your left hand Now gently slide the tab up or down until the adjustable slice most closely fits the response data See Figure 24 Selector adjusted for the best fit 9 HHI H H E yaga M enam N TEREF IEE tet g FIGURE 24 The pointer on the slider will indicate the correct width setting Enter this number in the Width field of the Measurement Template In our example the width is 12 5 Itis not realistic to expect a perfect fit Acoustic measurements encompass the behavior of not only the speakers but of the room and its contents as well Reflected energy Standing waves and ambient noise all add their part Determining the best width setting nearly always requires compromise Level This setting will define the amount level you want to reduce the peak in decibels The R A B 0 S level adjustment is limited to attenuation only and is adjustable from 0dB to 14dB After optimization the R A B 0 S equalizer will eliminate the largest low frequency peak therefore the broadband bass level can be increased without overpowering the midrange frequencies R A B 0 S applies this Compensation automatically You will use the Width Selector as an aid in determining the correct level setting Place the Width Selector as described above and adjust it to the correct width Observe the first frequency point on the high frequency side of the peak that no longer follows the
25. inity directly at 1 800 553 3332 or www infinitysystems com for a service center near you MODULUS Ii HOME THEATER SYSTEM SPECIFICATIONS Modulus Ii Home Theater System Frequency Range Recommended Amplifier Power Range Sensitivity 2 83V 1 meter Nominal Impedance Crossover Frequency Midrange Driver s High Frequency Driver Dimensions H x W x D Weight Frequency Range Amplifier Output Low Frequency Driver Crossover Frequency Dimensions H x W x D including grille Weight 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 Satellite 100Hz 20 000Hz 3dB 15 125 watts 860B 8Q 2500Hz 12dB Octave 4 CMMD magnetically shielded 3 4 CMMD magnetically shielded Shelf position 11 x 5 1 2 x 4 1 2 279mm x 140mm x 114mm Wall position 9 3 4 x 5 1 2 x 5 3 4 248mm x 140mm x 146mm 5 1 Ib 2 3kg Powered Subwoofer 27Hz 100Hz 3dB 300 watts RMS 600 watts Peak 12 CMMD magnetically shielded 100Hz 12dB Octave 16 3 4 x14 1 2 x 18 1 8 425mm x 368mm x 460mm 44 b 20kg publications are therefore subject to change without notice MODULUS H HOME THEATER SYSTEM Center Channel 80Hz 20 000Hz 3dB 15 125 watts 880B 8Q 2500Hz 12dB Octave Dual 4 CMMD magnetically shielded 3 4 CM
26. is does not eliminate the dips We have simply moved away from them Sometimes only a few inches are required Do not attempt to correct this condition with equalization If you encounter dips like this take the following steps MODULUS H HOME THEATER SYSTEM 1 Select a new test position Cue the test track corresponding to the center frequency of the dip In the example in Figure 29 you would playTracks 14 52Hz and 18 40Hz Press Play gt You will see a reading very close to what you had before Now slowly move the RSLM around the area if possible remaining within about a foot of the original test point As you move the RSLM watch the bar graph You will observe large level fluctuations Find a location for the subwoofer or a test location that raises the response at these frequencies You may find it helpful to move the RSLM vertically Dips can be oriented in any axis The position that restores the level to about that of the adjacent test points is your new test position 2 Reset the test level Return to the section Setting the Subwoofer Test Level on page 11 Perform the procedure as described 3 Repeat the measurements Now that you are familiar with the measurement process you can go much faster by using Tracks 27 50 These tracks contain all the test tones necessary for measurement However each test is only about three seconds and there is no frequency announcement The first test is 100Hz J ust place each test mar
27. is is how they should be during this procedure Try to minimize ambient noise while running tests Turn off all major appliances and any air conditioning or furnace fans These can create significant subsonic noise that may be barely perceptible but which can wreak havoc on low frequency measurements Critical information is highlighted with this mark Helpful hints are marked with this symbol MODULUS H HOME THEATER SYSTEM 9 Contents of the R A B 0 S Test CD Track Title Track Title 1 Welcome 32 Quick Retest 80Hz 2 Set System Test Level 33 Quick Retest 77Hz 3 Set Subwoofer Test Level 34 Quick Retest 72Hz 4 100Hz Test 35 Quick Retest 66Hz 5 95Hz Test 36 Quick Retest 63Hz 6 90Hz Test 37 Quick Retest 56Hz 7 85Hz Test 38 Quick Retest 52Hz 8 80Hz Test 39 Quick Retest 49Hz 9 77Hz Test 40 Quick Retest 46Hz 10 72Hz Test 41 Quick Retest 43Hz 11 66Hz Test 42 Quick Retest 40Hz 12 63Hz Test 43 Quick Retest 38Hz 13 56Hz Test 44 Quick Retest 35Hz 14 52Hz Test 45 Quick Retest 30Hz 15 49Hz Test 46 Quick Retest 26Hz 16 46Hz Test 47 Quick Retest 24Hz iy 43Hz Test 48 Quick Retest 22Hz 18 40Hz Test 49 Quick Retest 21Hz 19 38Hz Test 50 Quick Retest 20Hz 20 35Hz Test 51 Final System Level Adjustment 21 30Hz Test 52 Final Subwoofer Level Adjustment 22 26Hz Test 53 Wide Band Pink Noise Left 23 24Hz Test 54 Wide Band Pink Noise L R 24 22Hz Test 55 Wide Band Pink Noise Right 25 21Hz Test 56 Wide Band Pink Noise
28. k in order until finished Connect the dots Your second measurement will no longer exhibit the deep response dips However the peak will still be evident Without the influence of the response dips the amplitude and center of the peak may have changed 4 Interpret the new data Compare your new data to the examples given in this section of the manual Follow the instructions for the example that most closely matches your new measurement Example 6 Ideal Response Ideal response no EQ needed FIGURE 30 MODULUS H HOME THEATER SYSTEM If your test data looks similar to the example in Figure 30 you have a very favorable setup Skip to the Final System Balance section page 19 Adjusting the R A B 0 S Equalizer Now that you have performed the measurements and interpreted the data you have the information needed to adjust the Subwoofer s equalizer There is a R A B 0 S On Off Switch located in the top right corner of the Modulus subwoofer s rear This switch must be set to the On position in order for the equalizer controls to take effect You can defeat all equalizer controls by setting the switch to the Off position There are three equalizer adjustments on the Modulus II Subwoofer Top to bottom they are marked Freq Width and Level Each control has 21 positions These are numbered from left to right Therefore Position 1 is the full counter clockwise position R A B 0 S
29. kers to the room they are in exactly as the professional sound engineers do it Performing R A B 0 S Tests These instructions assume you have already installed your Modulus Il subwoofer according to the information provided in the owner s guide It is also assumed that all equipment in your entertainment system is interconnected properly and is in good Operating condition Preparations Before beginning R A B 0 S tests please check the following Make sure all three R A B 0 S controls on the Modulus II subwoofer are turned fully clockwise Set the R A B 0 S On Off Switch to the On position Make sure the loudness contour if any on your receiver processor preamp is turned off Set the 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 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 You must have a CD player in the system A CD player remote control is quite convenient but not essential 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 th
30. lanning Your System Placement Center and Satellite Speaker Connections Subwoofer Controls Subwoofer Connections Operation Room Adaptive Bass Optimization System R A B 0 S Contents of the R A B 0 S Test CD R A B 0 S Sound Level Meter RSLM What You Measure What To Do Adjusting the R A B 0 S Equalizer Final System Balance Maintenance and Service Specifications R A B 0 S Measurement Templates MODULUS Ii HOME THEATER SYSTEM NTRODUCTION The Infinity Modulus Il Home Theater System is a compact efficient universal satellite center channel and subwoofer system that is ideal for reproducing multichannel audio and home theater sound With their versatile design the satellite speakers can be placed virtually anywhere on shelves or stands or mounted on a wall using the supplied base The center channel can easily be placed on top of or on a shelf below the television The powered subwoofer delivers tremendous bass performance from a compact easy to place design About This Manual To start enjoying your new Modulus II Home Theater System read and then follow all instructions listed in this guide as well as those found in the owner s manuals of associated components in your audio system Save all instructions for future reference TECHNOLOGY Modulus Il loudspeakers incorporate several innovative technologies that when implemented by our exceptionally talented engineers after hours upon hours of subjective liste
31. ment screw has been loosened F 3 lt lt ZAXINI IGURE LLLE U U U US RRR ROKR RK 0000000000 0000000400 0000000022 0202 gt RIII RRR RRR x PQS Adjustment Screw Allen Wrench Housed in Base Speaker Rubber Cover Mounting Plate shown removed from Base The Mounting Plate is used to secure the Modulus II to a surface in a fixed position such as for wall mounting or on an uneven surface FIGURE 4 KK SOQ OO 2624242622 SS Q SOS SKK SSS LSS 92909090S RRRS ISSIS S xX oS SKS LLS LS L 999o SELLE OSES SRS S05 2252 REINS RRO SLR RYE Speaker Mounting Ball Adjustment Screw 3 Run speaker wires in through the rear of the base and up through the speaker wire holes on the left and right sides of the cup restraint see page 5 Figure 10 for wire connections FIGURE 5 Connector Posts Speaker Wire Hole 4 Rotate speaker on its base into the shelf placement position as shown below Tighten the adjustment screw with the Allen wrench Securing the speaker in position and replace the cover FIGURE 6 MODULUS M HOME THEATER SYSTEM For Wall Mounting 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 1 Remove the Modulus II from its box Remove rubber cover from base and pull
32. ng the speakers you are ready to connect your system First turn off all audio system power Use high quality speaker wire to make your connections Use at least 16 gauge speaker wire with polarity coding The side of the wire with a ridge or other coding is usually considered positive polarity i e Also consult the owner s manuals that were included with your amplifier or receiver to confirm connection procedures Satellites Observe polarities when making speaker connections as shown in Figure 10 Connect each terminal on the back of the amplifier or receiver to the respective red terminal on each speaker Connect the black terminals in the same way Important Do not reverse polarities i e to or to when making connections Doing so will cause poor imaging and diminished bass response Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment 1 Loosen I Insert Bare 4s Terminal End Tighten v Terminal Receiver or Amplifier rear view Output i FIGURE 10 Wiring diagram shows polarity connections for one channel of a home theater system Center Channel Observe polarities when making speaker connections as shown in Figure 10 Connect each terminal on the back of the amplifier or receiver to the respective red terminal on the speaker Conn
33. ning evaluations result in a loudspeaker that realistically and accurately reproduces the signal source with minimal distortion and coloration Ceramic Metal Matrix Diaphragms CMMD For decades loudspeaker engineers have known that the ideal transducer should be stiff yet light and have high internal damping damping is a material s ability to absorb energy Infinity s patented CMMD transducer is a significant advance in transducer technology Ceramic a class of material new to loudspeakers offers better performance than other materials Ceramic is stiffer than metals and lighter than plastics and typical composite materials it also offers improved damping These ceramic based transducers take us a giant step closer to the ever elusive ideal transducer In tweeters CMMD technology offers stiffness and damping Superior to that of traditional metals and soft dome materials In woofer and midrange applications it offers accurate pistonic Operation over the entire frequency range of the driver completely eliminating coloration due to cone breakup and dramatically reducing distortion And when ceramic metal matrix transducers are exposed to moisture sunlight or extreme temperatures their performance does not deteriorate In addition to ceramic diaphragms all the transducers incorporate magnetic shielding and rigid cast frames that through our FEA computer modeling and scanning laser vibrometer measurements have been o
34. o acquire the information needed for adjustments You will create a response plot on the Measurement Template Using the Width Selector you will then determine the appropriate equalizer settings The Key is used to adjust the parametric equalizer built into the Modulus Il subwoofer After adjustment the test sequence is repeated to confirm your settings The R A B 0 S Goal It is a fact of audio that what we hear at low frequencies is determined as much or more by the listening room as by the loudspeaker itself Location 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 speakers 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 Professional sound engineers routinely employ sophisticated measurement systems and equalizers to optimize speakers to the installation This has never been practical for the home audiophile This is why R A B 0 S was created R A B 0 S enables you to identify the dominant low frequency response characteristic of your room Once you know the problem R A B 0 S provides the tools needed to optimize the low frequency characteristics of the spea
35. of power source indicated on the marking label If you are not sure of the type of power Supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions 17 If an outside antenna or cable system is connected to the product be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built up static charges Article 810 of the National Electrical Code ANSI NFPA 70 provides information with regard to proper grounding of the mast and supporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode See Figure A 18 An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or where it can fall into such power lines or circuits When installing an outside antenna system extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal Figure A Example of Antenna Grounding as per National Electrical Code ANSI NFPA 70 Ze 19 Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock 20 Never push object
36. point is always double or half the frequency Therefore one octave above 100Hz would be 200Hz One octave below 100Hz is 50Hz In the section that follows we will discuss the use of the Width Selector MODULUS M HOME THEATER SYSTEM Using the Width Selector Read the following instructions carefully The example presented may not look like the graph you just created Focus on the concepts and techniques presented Specific cases will be discussed later Width Selector FIGURE 22 You will use the Measurement Template just completed and the Width Selector to determine the correct width setting The Width Selector graphically depicts a single resonant peak The peak looks similar to a slice of a pie See Figure 22 At the top of the Selector is a pull tab When you slide the tab up and down the width of the pie slice becomes narrower and wider respectively The pointers on the sides of the button point to the bandwidth that corresponds to the width of the slice Place the Width Selector over the Measurement Template positioning the center rivet of the Selector over the response peak as shown in Figure 23 Be sure to align the horizontal lines of the Width Selector with those of the Measurement Template MODULUS HI HOME THEATER SYSTEM Placement of the Bandwidth Selector F tP Hna E TE Ki 4 Sh amp h ee E Ae Te BO DE uyar Fi pa hs FIGURE 23 Apply pressure to the upper and lower left corners of t
37. ptimized to reduce resonances This ensures minimal distortion and incomparable performance MODULUS H HOME THEATER SYSTEM Room Friendly Acoustical Design Driver quality is not the only requirement for exceptional performance Infinity s engineers understand that the room in which the loudspeaker is placed can greatly affect its performance To ensure that Modulus II loudspeakers will sound exceptional in even the most unexceptional listening environment Infinity has developed the proprietary Room Adaptive Bass Optimization System R A B 0 S With a single band of parametric equalization the Modulus II subwoofer can be adjusted to tame any problematic room bass resonances below 80Hz We hope you enjoyed this brief introduction to the technology featured in the Modulus II Home Theater System If you would like to further explore Modulus Is technology and design please ask your Infinity dealer for the CMMD and R A B 0 S White Papers The White Papers can also be downloaded from Infinity s Web site at www infinitysystems com Unpacking the System Carefully unpack the system If you suspect damage from transit report it immediately to your dealer and or delivery service Keep the shipping carton and packing materials for future use Open the package and verify the following contents 1 Modulus Il Powered Subwoofer 1 Modulus II Center Channel Speaker 4 Modulus II Satellite Speakers With Attached Base
38. s of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the product 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 22 When replacement parts are required be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 23 Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition 24 The product should be mounted to a wall or ceiling only as recommended by the manufacturer lt Esn Antenna Lead in Wire Ground Clamp Antenna Discharge Unit NEC Section 810 20 Grounding Conductors NEC Section 810 21 Electric Service Equipment Ground Clamps Power Service Grounding Electrode System NEC Art 250 Part H Moputus H Home THEATER SYSTEM OWNERS GUIDE Table of Contents COD O N DW CC N F 10 15 10 19 19 20 21 Important Safety Precautions Introduction Technology Ceramic Metal Matrix Diaphragms CMMD Room Friendly Acoustical Design Unpacking the System P
39. tape Dolby Pro Logic In each case follow your equipment s instructions to ensure that the subwoofer output is turned on and that the speakers are set to Small in each mode Power On Plug your Modulus Il subwoofer s AC cord into a wall outlet Do not use the outlets on the back of the receiver Initially set the subwoofer s Level Control to the 0 position Turn on your sub with the Power Button on the rear panel Auto On Standby With the Power Button in the ON position the Level Control on the front panel 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 Button can be left on You may turn off the Power Button during extended periods of nonoperation e g when you are away on vacation Adjust Level Turn on your entire audio system and start a CD or movie sound track at a moderate level Turn your subwoofer s Level Control up to the 5 position 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 rec
40. tional Industries Incorporated Part No 406 000 00921 3 03 H A Harman International Company
41. ulus II subwoofer this adjustment is abbreviated as Width Only parametric equalizers allow independent adjustment of all three parameters These will be explained more fully in the sections that follow Completing the Measurement Template Along the bottom of the Measurement Template are three fields where you will enter the equalizer settings needed to complete system optimization These instructions are based on the example in Figure 20 Use this tutorial to become familiar with the process Strategies for several other test results will be presented later After you have completed these three entry fields you will be ready to perform the adjustments completing R A B 0 S optimization Frequency The frequency of the R A B 0 S equalizer may be adjusted to any one of nineteen frequencies from 20Hz to 80Hz This defines where you are going to apply equalization Effect of adjustable width FIGURE 21 Width The frequency range of the R A B 0 S equalizer may be set from 5 to 50 of an octave in 21 steps This setting defines how much of the subwoofer s output will be equalized Width is expressed as a percentage of an octave For example a width setting of 25 means the equalizer will affect a frequency band of 1 4 of an octave 1 8 of an octave above and 1 8 of an octave below the center frequency The octave is a logarithmic expression From any point in the spectrum one octave above or below that
42. w will negate the benefits of the subwoofer Here are several additional facts on installation that may prove useful It is generally believed 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 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 for example whether or not your room permits placement of the subwoofer near either satellite and the amount and quality of bass required The R A B 0 S guide which begins on page 9 will also assist you in optimizing bass response for your room NSTALLINGTHE SATELLITES For Shelf Placement 1 Remove the Modulus II satellites from the box Remove rubber cover from the base and pull out Allen wrench 2 Use the Allen wrench to loosen the adjustment screw as necessary to allow the mounting ball on the speaker to turn freely in the cup restraint NOTE To prevent damage to the mounting ball do not rotate the speaker unless the adjust
43. xample that most closely matches your new measurement Example 4 Narrow Response Narrow response hn fh ai EG bm TYE Be HES lee FIGURE 28 Although it looks as though this speaker is quite bass deficient this is actually indicative of a single very narrow peak in excess of 10dB high Apply the Width Selector as described above Align the center line of the Selector over the center of the peak as shown in Figure 23 Now adjust the Selector until you have achieved the best fit The slider now points to the correct width setting In this example the frequency is 40Hz and the best fit width is 10 Fill in the Width and Frequency fields provided on the template Determine the appropriate level using the technique described earlier In this example 13dB is indicated Enter 13 in the field provided Skip to the Adjusting the R A B 0 S Equalizer section on page 18 Example 5 One or More Narrow Dips Example of two narrow dips fm RA U GN qa S H usa Pid mbi m a FIGURE 29 Response dips can occur at any frequency sometimes immediately adjacent to the peak you want to correct In this example there are two such dips on either side of the peak Deep response dips such as these are caused by destructive wave interference Destructive interference dips occur only in one spot within the room It is not uncommon to completely eliminate their effect by moving the RSLM to a different location Note that th
44. y of the dip In the first example in Figure 25 you would play Track 13 56Hz Press Play p gt You will see a reading very close to what you had before Now slowly move the RSLM around the area if possible remaining within about a foot of the original test point As you move the RSLM watch the bar graph You will observe large level fluctuations Find a position that restores the level to approximately that of the adjacent test points You may find it helpful to move the RSLM vertically Dips can be oriented in any axis The position that restores the level to about that of the adjacent test points is your new test position 2 Reset the test level Return to the section Setting the Subwoofer Test Level on page 11 Perform the procedure as described 3 Repeat the measurements Now that you are familiar with the measurement process you can go much faster by using Tracks 27 50 These tracks contain all the test tones necessary for measurement However each test is only about three seconds and there is no frequency announcement The first test is 100Hz J ust place each test mark in order until finished Connect the dots Your second measurement will no longer exhibit the deep response dip However the peak will still be evident Without the influence of the response dip the amplitude and center of the peak may have changed Compare your new data to the examples given in this section of the manual Follow the instructions for the e
45. you do not operate your speakers or Subwoofer with the bass treble and loudness controls set to full boost This will place undue strain on your electronics and speakers and could damage them The volume control setting on your processor preamp or receiver is not a specific indication of the overall loudness level of the speakers The only important consideration is the loudness level at which the system can be played regardless of where the volume control is set Always turn down the volume control setting on your processor preamp or receiver when changing a cassette or CD or switching inputs to AM or FM operation Excessively loud transients clicks Or popping sounds can damage the satellite speakers and possibly the subwoofer Important Whenever changing cables pulling plugs etc ALWAYS TURN OFF ALL EQUIPMENT including the subwoofer This prevents transients from entering the speakers and prevents electrical energy from reaching you Keep all connections out of the reach of children SUBWOOFER CONNECTIONS If you have a Dolby Digital or DTS receiver processor with a low frequency effects LFE output SUBWOOFER OR LFE OUTPUT Infinity Systems H A Harman International Company R A B 0 S Is Contro Modulus MSW II This unit is designed to become quite warm during normal operation WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE AVERTISSEMENT POUR
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