Infinity Speaker System Compact Powered Subwoofer User's Manual
Contents
1. 0 21 4 x 35 3540 43 am 65255 6301 72 7780 05 00 25 100 Frequency R 2 4 10 14 14 021 4 26 30 5 Ba 43 4 40 52 Sb 6304 72 7780 659995100 Frequency Figure 17 Dip above or below peak 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 Cascade Model Twelve 1 Select a new test position Cue the test track corresponding to the center frequency of the dip In the first example in Figure 18 you would play Track 13 56Hz Press Play P 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 hel2. watch the bar graph You Find a location for the s t t t your new test position tion Cue the test track corresponding to he dip In the example in Figure 19 you ould play Tracks 14 52Hz and 18 40Hz Press Play You ill see a reading very close to what you had before Now slowly e area if possible remaining within about a foot of the original test point As you move the RSLM will observe large level fluctuations bwoofer or a test location that raises e response at these frequencies You may find it helpful to move e RSLM vertically Dips can be oriented in any axis The position at restores the level to about that of the adjacent test points is 2 Reset the test level Return to the section Setting the Subwoofer Test Level 0 described 3 Repeat the measurements Now that you are familia measurement process you can go much faster by usi 27 50 These tracks co measurement However e there is no frequency an page 7 Perform the proced ouncement The first test is re as r with the g Tracks tain all the test tones necessary for ach test is only about three seconds and 00Hz Just place each test mark in order until finished Connect the dots Your second easurement 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 ay have changed 4 Interpret
3. 52H Quick Retest 49 Quick Retest 46H Quick Retest 43 Quick Retest 40H Quick Retest 38 Quick Retest 35H Quick Retest 30 Quick Retest 26H Quick Retest 241 Quick Retest 22H Quick Retest 21 Quick Retest 20Hz Final System Level Adjustment Final Subwoofer Level Adjustment Wide Band Pink Noise Left Wide Band Pink Noise L R Wide Band Pink Noise Right Wide Band Pink Noise L R Wide Band Pink Noise Uncorrelated 1 to 4kHz Pink Noise Left 1 to 4kHz Pink Noise L R 1 to 4kHz Pink Noise Right 1 to 4kHz Pink Noise Left R 1 to 4kHz Pink Noise Uncorrelated NWP Nn Peewee eee PS 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 O S settings THE 0 5 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 Power V Figure 2 R A B 0 S Sound Level Meter Power is switched on or off by pressing the button directly below the bar graph window When the unit is on one or more LEDs will always be illuminated The function of the LEDs is described in the following s
4. 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 bass response is always there but never obtrusive Cascade Model Twelve Room ADAPTIVE Bass OPTIMIZATION SYSTEM Infinity s 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 Cascade Model Twelve self amplified subwoofer The 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 subwoofer s response characteristics to complement the sub s environment This will dramatically improve the sound of your system The optimization proc
5. 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 this 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 9 Contents of the R A B 0 S Test CD Track O CO cn N 4 MN Title Welcome Set System Test Level Set Subwoofer Test Level 100Hz Test 95Hz Tesi 90Hz Tes 85Hz Tes 80Hz Tes TTHz Tes T2Hz Tes 66Hz Tes 63Hz Tes 56Hz Tes 52Hz Tes 49Hz Tesi 46Hz Tesi 43Hz Tesi 40Hz Tesi 38Hz Tes 35Hz Tes 30Hz Tes 26Hz Tes 24Hz Tes 22Hz Tes 21Hz Tes 20Hz Tes Intro to Quick Retest Quick Retest 100Hz Quick Retest 95Hz Quick Retest 90Hz Quick Retest 85Hz Title Quick Retest 80H Quick Retest 771 Quick Retest 72H Quick Retest 66 Quick Retest 63H Quick Retest 56 Quick Retest
6. into this 15 Do not use attachments not recommended by product through openings as they may touch The lightning flash with arrowhead symbol the product manufacturer as they may cause dangerous voltage points or short out parts that 19 Do not overload wall outlets extension cords within an equilateral triangle is intended to b alert the user to the presence of uninsulated hazards could result in a fire or electric shock Never dangerous voltage within the product s spi 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 21 Do not attempt to service this product The exclamation point within an equilateral type of power source indicated on the marking If 4 triangle s ntended to alert the usar to the label If you are not sure of the type of power yoursel as opening OF removing covers May Instructions in dhe supply to your home consult your product dealer expose you to dangerous voltage or other hazards literature accompanying the appliance or local power company For products intended to Refer all servicing to qualified service personnel operate from battery power or other sources 22 When replacement parts are required be sure refer to the operating instructions the service technician has used replacement f 1 Read these in
7. s R A B O S controls must be individually adjusted during the R A B 0 8 setup OR SUB OUT RECEIVER PROCESSOR iva Y Infinity Cascade Model Twelve Y Infinity Cascade Model Twelve 37 Cascade Model Twelve OPERATION Power On Crossover Adjustments Plug your subwoofer s AC cord into a wall outlet Do not use the NOTE This control will have no effect if the Normal LFE Selector outlets on the back of the receiver Switch is set to LFE If you have a Dolby Digital or DTS Initially set the Subwoofer Level Volume Control to the processor receiver the Crossover Frequency is set by the min position processor receiver Consult your owner s manual to learn how f to view or change this setting Turn on your sub by pressing the Power Switch on the rear panel The Crossover Adjustment Control determines the highest frequency at which the subwoofer reproduces sounds If your main Auto On Standby speakers can comfortably reproduce some low frequency sounds With the Power Switch in the ON position the Power set this control to a lower frequency setting between 50Hz Indicator LED will remain backlit in red or green to and 100Hz This will concentrate the subwoofer s efforts on the indicate the On Standby mode of the subwoofer ultradeep bass sounds required by today s films and music If you RED STANDBY No
8. set from 5 to 50 of an octave in 21 steps This setting defines how much of the Cascade Model Twelve s output will be equalized 202122 25 5 34 5 45 432 5 m6 72770 85 80 85 10042 Frequency Figure 11 Effect of adjustable width 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 8 The octave is a logarithmic expression From any point in the spectrum one octave above or below that 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 Using the Width Selector D 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 Figure 12 Width Selector 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 12 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
9. the new data Compare your new data to the examples given in this section of the manual Follow the instructions for the example that Example 6 Ideal Respon S6 ost closely matches your new measurement Figure 20 Ideal response no EQ needed If your test data looks similar to the example in Figure 21 you have a very favorable setup Skip to the Final System Balance section page 15 Adjusting the 0 Now that you have performed the data you have the inform subwoofer s equalizer S Equalizer the measurements and interpreted ation needed to adjust the There are three equalizer adjustments on the subwoofer Left to right they are marked Frequency Level and Width Each control has 21 positions The Therefore Position 1 is the f following table illustrates al Position F Hz NSO e NO mmi mA mds mimi cic ra eras 024 Co cO O Ou PF MN h 21 CW 80 se are numbered from left to right ull counterclockwise position The switch positions L dB W 14 1 4 5 19 9 5 19 5 1 5 13 1 10 12 7 12 5 allt 16 5 11 0 20 5 10 2 23 9 5 26 8 9 28 8 3 29 5 1 9 31 6 4 34 4 4 39 2 9 41 5 1 9 43 5 EN 45 0 5 46 5 0 0 48 0 0 49 0 0 49 5 Cascade Model Twelve 14 If using more than one subwoofer always adjust both subwoofers together Adjust the contr
10. to this manual and store in a safe place In the event that your Infinity speaker requires warranty service you ll need to provide your sales receipt Cascade Model Twelve R A B O S Measurement Template Level 16 20 2122 24 26 30 35 38 40 43 46 49 52 56 6366 72 7780 85 90 95 100Hz Frequency Frequency Hz Level dB Width 76 R A B O S Measurement Template Level 16 202122 24 26 30 35 38 40 43 46 49 52 56 6366 72 7780 85 90 95 100Hz Frequency Frequency Hz Level dB Width Cascade Model Twelve R A B O S Measurement Template 14 Level 16 20 2122 24 26 30 35 38 40 43 46 4952 56 6366 72 7780 85 90 95 100Hz Frequency Frequency Hz Level dB Width___ R A B O S Measurement Template Level 16 202122 24 26 30 35 38 40 43 46 49 52 56 6366 72 7780 85 90 95 100Hz Frequency Frequency Hz Level dB Width 26 Cascade Model Twelve SPECIFICATIONS Cascade Model Twelve Frequency Response 32Hz 150Hz 3dB 28Hz 150Hz 6dB Maximum Amplifier Output 300 watts RMS 20Hz 150Hz with no more than 0 196 THD Crossover Frequencies 50Hz 150Hz continuously variable or LFE Driver 10 250mm Dual 10 250mm MMD passive radiators Dimensions H x W x D 90 x 15 x 13 7 8 508mm x 381mm x 352mm Weight 49 Ib 19kg Infinity continually strives to update and improve existing products as well as create new ones The specifications and construction details in this and relate
11. Meter RSLM 7 Initial System Level Setting 7 Setting the Subwoofer Test Level 7 Performing Low Frequency Measurements 9 What Does a Parametric Equalizer Do 9 Completing the Measurement Template 10 Using the Width Selector 11 Level 11 What You Measure What to Do 14 Adjusting the R A B O S Equalizer 15 Final System Balance 16 Maintenance and Service 17 R A B O S Measurement Templates 19 Specifications Cascade Model Twelve Infinity Cascade Model Twelve The Infinity Cascade Model Twelve continues Infinity s long standing commitment to accurate sound reproduction Our proprietary Metal Matrix Diaphragm MMD drivers high powered amplifier and proprietary Room Adaptive Bass Optimization System R A B 0 8 along with a rigid well braced enclosure combine to deliver uncompromised bass performance in any stereo or multichannel home theater In addition the Cascade Model Twelve s compact enclosure allows for easy integration into any residential environment 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 sus Since the installation of a subwoofer can be somewhat more RIGHT complicated than installing full range speakers it is essential CHANNEL that you read this section very carefully prior to connecting the SPEAKER subwoofer to your system Should you have question
12. Optimization System Bandwidth Adjustment Cascade Model Twelve CONNECTIONS If you have a Dolby Digital or DTS receiver processor with a low frequency effects LFE output If your receiver processor has subwoofer outputs for the left and right channels SUB OUT RECEIVER PROCESSOR SUBWOOFER OR O FE OUTPUT RECEIVER PROCESSOR pu Y Infinity Cascade Model Twelve lt Model Twelve Line n Line out e Set Normal LFE Switch to LFE Set Normal LFE Switch to Normal 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 subwoofer NOTE Some receivers have a single subwoofer output do not confuse this with a single LFE output as described to the left In that case it is recommended that you use a Y connector not included to maximize performance The Cascade Model Twelve also includes a set of line outputs These SUBWOOFER OR outputs allow you to daisy chain LFE OUTPUT one Model Twelve to multiple Model Twelve subwoofers Simply connect the first subwoofer as described above and then run a subwoofer cable from the line output s to the line input s on the next sub RECEIVER PROCESSOR Model Twelve Model Twelve VOINANIY cate 224 gt VOINANIY cascar N 2 y NOTE This line output is before the R A B O S circuit Each subwoofer
13. W Infinity Compact Powered Subwoofer MODEL TWELVE 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 F 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 E has been spilled or objects have fallen into the CAUTION To prevent electric shock do not use this polarized plug with apparatus the apparatus has been exposed to rain or 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 2 19 been dropped 20 Never push objects of any kind
14. alization 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 Cascade Model Twelve 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 11 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 97 Cascade Model Twelve Width The frequency range of the R A B 0 S equalizer may be
15. 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 11 This track will produce band limited pink noise in both the left and right channels Press Play With the RSLM positioned as described above increase the system volume until the RSLM display indicates 10dB See Figure 4 Figure 4 RSLM indicating the correct system level to begin tests 10dB When you have completed this adjustment press Pause II Setting the Subwoofer Test Level 8 Each of the following test tracks is about one minute long This is normally much longer than required Press Pause II or advance to the next test as soon as you are ready This step will set the subwoofer levels 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 OdB reading is observed on the highest peak without triggering the over range indication Later you will rebalance the subwoofer to the main speakers The three R A B 0 S controls 9 and should be 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 Cue Track and Pause 11 Track 3 continuously steps through all subwoofer test tones for approximately 1 minute Each
16. cteristics and their dimensions fall into a range that make 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 9 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 11 Cascade Model Twelve Example 1 Single Dominant Peak 20 21 22 24 26 30 35 384 43 6 4952 5 8368 72 7750 85 90 95 100H2 Frequency Figure 15 Single dominant peak This is the most common result of speaker room interaction Apply the Width Selector as described in Figure 13 Align the center line of the Selector over the center of the peak as shown in Figure 14 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 S
17. d Infinity publications are therefore subject to change without notice Cascade Model Twelve NOTES W Infinity TECHNOLOGY PERFORMANCE DESIGN Infinity Systems 250 Crossways Park Drive Woodbury NY 11797 USA 516 674 41 4463 www infinitysystems com Trademark of Dolby Laboratories DTS is a registered trademark of DTS Inc Infinity Harman International and MMD are registered trademarks and Metal Matrix Diaphragm Room Adaptive Bass Optimization System R A B 0 S and Cascade are trademarks of Harman International Industries Incorporated Part No 406 000 05338 E 2005 Harman International Industries Incorporated All rights reserved H A Harman International Company
18. e R A B O S Test CD Press Play D 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 enclosure and grille may be cleaned using a soft cloth to remove fingerprints or to wipe off dust All wiring connections should be inspec ed and cleaned or remade periodically The frequency of maintenance depends on the me als involved in the connections a and other factors but once per year is t If a problem occurs make sure tha made and clean the connection wi remains in the same speaker then loudspeaker If the problem appears in t cause is in another component or cable act your local In subwoofer ever needs service con or distributor or www infinitysyste near you IMPORTANT Plea se attach your sa f a problem exists in o res to the left and righ 4 all c he fa tmospheric conditions e minimum onnections are properly e loudspeaker reverse system If the problem It is with the e opposite speaker the In the event that your finity dealer 5 60 es re for a service center ceipt
19. ection att On Measurement Over range Low Under range In range Battery Figure 3 RSLM bar graph indications 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 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 OdB 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 QD You must use this same position for all tests 8 lt The RSLM can be mounted on a standard camera tripod This will ensure the best results Cascade Model Twelve 6 Initial System Level Setting The following steps will set the playback level of the system to the
20. ee Figure A 9 Do not defeat the safety 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 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 Antenna Lead In Wire or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Antenna Discharge Unit NEC Section 810 20 Ground Clamp 11 Only use attachments accessories specified by Grounding Conductors NEC Section 810 21 the manufacturer Electric Service Equipment 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is Ground Clamps Power Service Grounding Electrode System NEC 250 Part ii Cascade Model Twelve CASCADE MODEL TWELVE OWNER S GUIDE Table of Contents ii Important Safety Precautions 1 Unpacking the Subwoofer 1 Placement 2 Controls and Connections 3 Connections 4 Operation 5 Room Adaptive Bass Optimization System R A B 0 S 6 Contents of the R A B 0 S Test CD 6 The R A B 0 8 Sound Level
21. efine the amount level you want to reduce the peak in decibels The R A B 0 8 level adjustment is limited to attenuation only and is adjustable from OdB to 14dB After optimization the R A B O 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 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 56Hz 63Hz 66Hz T2Hz 77Hz 80Hz 85Hz 90Hz 95Hz 100Hz 9 10 8 9 10 9 8 10 10 9 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 chara
22. er line of the Selector over the center of the peak as shown in Figure 13 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 14 Example 5 One or More Narrow Dips 202122 24 28 3 35 35 2 43 4952 6365 72 7780 85 90 96 10092 Frequency Figure 19 Example of two narrow dips 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 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 Select a new test posi e center frequency of lt lt 5 ove the RSLM around t
23. ess 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 Adjustment Key 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 s used to acquire the information needed for adjustments You ill create a response plot on the Measurement Template Using he Width Selector you will then determine the appropriate qualizer settings The Key is used to adjust the parametric qualizer built into the Cascade Model Twelve After adjustment he test sequence is repeated to confirm your settings v lt 5 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 than by the oudspeaker itself Placement of the loudspeakers and listeners d the acoustical characteristics of the room surfaces are all portant determinants of bass quantity and quality In most practical situations there is little that can be done about this xcept for patient trial and error repositioning of the oudspeakers 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 g Professional sound engineers routinely em
24. kip to the Adjusting the R A B 0 S Equalizer section on page 14 Example 2 Two Response Peaks Example 3 Peak Adjacent to a Dip 048 35 32140 43 56 63066 72 7780 85 90 56 100He Frequency 048 Figure 16 Two response peaks 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 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 OdB 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 14
25. 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 13 Be sure to align the horizontal lines of the Width Selector with those of the Measurement Template Lud 2 a F 5 505 oOo 202122 24 30 3 35 4 4 4 4952 56 6366 72 7780 85 90 86 100Hz Frequency Figure 13 Placement of the Bandwidth Selector Apply pressure to the upper and lower left corners of the 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 14 3 2 3 e Mi tN g 202122 26 30 33 40 47 45 4232 6 63685 72 7780 85 80 85 10Hz Frequency Figure 14 Selector adjusted for the best fit Cascade Model Twelve 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 8 It is 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 eneray standing waves and ambient noise all add their part Determining the best width setting nearly always requires compromise Level This setting will d
26. ols 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 Cascade Model Twelve R A B 0 S Controls Level 5 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 QD If you are going to retest the system after EQ adjustments repeat the Setting the Subwoofer Test Level section on p 7 8 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 f 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 7 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 15 Cascade Model Twelve Final System Balance Cue Track 51 of th
27. om frame of the template See Figure 8 When finished press Skip I 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 9 Level 16 202122 24 25 36 3840 43 4 4952 56 6366 72 7780 85 90 95 100Hz Frequency 202122 4 6 40 43 20 4852 Frequency Figure 8 Indicating an under range test Figure 9 Completed R A B 0 S template Now connect the dots as shown in Figure 10 This will make interpretation of the data much easier Level 16 202122 24 26 30 35 4 43 46 46 52 66 6368 72 7780 86 80 86 100Hz Frequency Figure 10 Test example with dots connected Cascade Model Twelve At this point you may simply enter the data you just into the R A B 0 S calculator found on the Infinity Web site at www infinitysystems com After entering the data this R A B 0 S wizard will return the correct settings for all three R A B 0 S controls 9 and Skip to page 14 and adjust these controls as described and finish the R A B 0 S setup If you would like to manually calculate the R A B 0 S settings simply continue following the instructions from this point What Does a Parametric Equalizer Do The R A B 0 S system uses one band of parametric equ
28. pful 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 7 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 Just 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 example that most closely matches your new measurement Example 4 Narrow Response 24 26 30 35 38 4 43 46 4952 56 6368 72 7780 56 90 95 100 2 Frequency Figure 18 Narrow Response 13 Cascade Model Twelve Although it looks as though this system is quite bass deficient this is actually indicative of a single very narrow peak in excess of 1OdB high Apply the Width Selector as described above Align the cent
29. ploy 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 speakers to the room they are in exactly as the professional sound engineers do it 57 Cascade Model Twelve Performing 0 5 Tests These instructions assume you have already installed your 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 Set R A B 0 S switch to On position Make sure all three R A B O S controls 9 and on the subwoofer are turned fully clockwise 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 f you are using a multichannel surround processor or receiver make sure all bass management features are properly set The Audio channels should
30. s relating to your installation it is advisable to call either your dealer or finity 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 ith its satellite speakers Setting the volume of the subwoofer in PRIMARY relationship to the left and right speakers is also of critical LISTENING importance because it is essential that the subwoofer integrate AREA 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 Figure 1 This example shows the subwoofer positioned behind subwoofer the right channel satellite speaker to re create the actual location of bass instruments orchestra and or add impact Here are several additional facts on installation that may prove to movie soundtracks useful It 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 infl
31. signal detected Amp Off are using smaller bookshelf speakers that do not extend to the GREEN ON Signal detected Amp On lower bass frequencies set the Crossover Adjustment Control to The subwoofer will automatically enter the Standby mode after higher setting between 120H and 150 2 approximately 10 minutes when no signal is detected from your system The subwoofer will then power ON instantly when a Phase Control signal is detected During periods of normal use the Power The Phase Switch determines whether the subwoofer Switch can be left on You may turn off the Power Switch speaker s piston like action moves in and out with the main for extended periods of nonoperation e g when you are away speakers 0 or opposite the main speakers 180 Proper phase on vacation adjustment depends on several variables such as room size subwoofer placement and listener position Adjust the phase Adjust Gain switch to maximize bass output at the listening position 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
32. structions parts specified by the manufacturer or that have 17 If an outside antenna or cable system is A i 2 Keep these instructions connected to the product be sure the antenna or the same characteristics as the original part ised all Waring cable system is grounded so as to provide some Unauthorized substitutions may result in fire j 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 the mast and supporting structure grounding of product is in proper operating condition 7 Do not block any ventilation openings Install in s the lead in wire to an antenna discharge unit size accordance with the manufacturer s instructions of grounding conductors location of antenna ischarge unit connection to grounding 24 The product should be mounted to a wall or ceiling only as recommended by the manufacturer 8 Do not install near any heat sources such as d radiators heat registers stoves or other apparatus electrodes and requirements for the grounding including amplifiers that produce heat electrode S
33. surement Template 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 6 on the previous page The vertical scale on the left side of the template 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 11 8 From now on you will want to keep your CD player s remote control handy Press Play 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 7 7780 85 90 95100Hz Figure 7 Locating a test point 9 Xx t 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 bott
34. tone will play just long enough for the RSLM to give a stable reading 8 get accurate measurements it is necessary to play the subwoofer 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 plays Strong buzzes not only sound bad they can cause measurement errors If you hear a buzz Cascade Model Twelve or rattle during this test it is highly recommended that you ocate the source and eliminate its effects This is actually a valuable room diagnostic tool Press Play 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 evel observed is 048 without triggering the over range indication See Figure 5 Too low Correct Too high level Figure 5 Adjusting the subwoofer levels for a 0dB peak When finished press Pause 11 Performing Low Frequency Measurements B Read the following instructions fully before beginning tests For the following steps you will need a Measurement Template and a pencil R A B O S Measurement Template 045 202122 26 M Ma ab 45 4166 727700 M 60 66 100 Frequency Frequency _Hz Level _ dB Width Figure 6 0 5 Mea
35. uence 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 4 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 17 Cascade Model Twelve CONTROLS AND CONNECTIONS Rear Panel use Coma Level HZ Y Infinity Cascade Go Model Twelve Line In 9 V Crossover o o Line Out This area is designed to become quite warm during normal operation A RISK OF ELECTRIC SHOCK A DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR Power WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE AVERTISEMENT POUR PREVENIR LES RISQUES D INCENDIE OU DE CHOC ELECTRIQUE VITER D EXPOSER CET APPAREIL A LA PLUIE OU A L HUMIDIT AC 120V 60Hz 2A 6 CSAC22 2 1 98 UL 1492 XZ Yy Power Switch Line Level Outputs Line Level Inputs Power Indicator Crossover Adjustment Subwoofer Level Volume Control Normal LFE Selector Phase Switch Bass Optimization Controls see page 5 Bass Optimization System Selector Center Frequency Adjustment Bass Optimization System Level Adjustment Q Bass
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