Infinity Cascade 3C Owner'S Manual Download Page 20 | Manualshive

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17

CASCADE MODEL FIFTEEN

Frequency

Width

Frequency

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Hz

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Cascade 15 OM 9/14/05 2:35 PM Page 20

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Summary of Contents for Cascade 3C

Page 1: ...Compact Powered Subwoofer CASCADE MODEL FIFTEEN Owner s Guide 120V CASCADE ...

Page 2: ...rting 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 powe...

Page 3: ... S Sound Level Meter RSLM 6 RSLM Placement 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 Measur...

Page 4: ...kers is also of critical importance because it is essential that the subwoofer integrate smoothly with the entire system Setting the subwoofer s volume level too high will result in an overpowering boomy bass Setting the volume level too low will negate the benefits of the subwoofer Here are several additional installation facts that may prove useful It is generally believed by most audio authorit...

Page 5: ...utputs Power Indicator Subwoofer Level Volume Control Crossover Adjustment Phase Switch Normal LFE Selector Power Switch Bass Optimization Controls see page 5 ª R A B O S Selector Center Frequency Adjustment Bass Optimization System Level Adjustment B Bass Optimization System Bandwidth Adjustment ...

Page 6: ...fers 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 NOTE This line output is before the R A B O S circuit Each sub woofer s R A B O S controls must be individually adjusted during the R A B O S setup SUBWOOFER OR LFE OUTPUT If your receiver processor has subwoofer outputs for the left and right channel...

Page 7: ...d 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 Howe...

Page 8: ...s to optimize speakers to the installation This has never been practical for the home audiophile This is why R A B O S was created R A B O S enables you to identify the dominant low frequency response characteristic of your room Once you know the problem R A B O S provides the tools needed to optimize the low frequency characteristics of the speakers to the room they are in exactly as the professi...

Page 9: ...UND LEVEL METER RSLM The RSLM is a battery operated handheld acoustic measurement device specifically designed for Infinity R A B O 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 Track Title 1 Welcome 2 Set System Test Level 3 Set Subwoofer Test Level 4 100Hz T...

Page 10: ...begin this test The Level control should be set to the mid position Cue Track 3 and Pause II Track 3 continuously steps through all subwoofer test tones for approximately one 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 subwoofer quite loud The 0dB indication is about 94dB At this level frequencies below ...

Page 11: ...Hz X axis and 2dB Y axis Place a dot at that point See Figure 7 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 d...

Page 12: ...ions that follow Completing the MeasurementTemplate 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 t...

Page 13: ...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 13 Be sure to align the horizontal lines of the Width Selector with those of the Meas...

Page 14: ... 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 make some response irregularities far more likely than others On the following page...

Page 15: ...lculation 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 O S Equalizer section on page 14 Example 3 Peak Adjacent to a Dip Response dips can occur at any frequency some...

Page 16: ...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 Although it looks as though this system 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 earlier Align the center line of the Selector ov...

Page 17: ...l 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 y...

Page 18: ...nly 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 Setting the Subwoofer Test Level on ...

Page 19: ...d 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 subwoofer ever needs service contact your local Infinity dealer or distributor or visit www infinit...

Page 20: ...17 CASCADE MODEL FIFTEEN Frequency Width Frequency Width Hz dB Hz dB ...

Page 21: ...18 CASCADE MODEL FIFTEEN Frequency Width Frequency Width Hz dB Hz dB ...

Page 22: ...ave continuously variable Normal LFE switch set to Normal Drivers Four 6 x 6 152mm x 152mm Dimensions H x W x D 13 x 37 x 8 1 2 330mm x 940mm x 216mm Weight 98 lb 44 5kg Infinity continually strives to update and improve existing products as well as create new ones The specifications and construction details in this and related Infinity publications are therefore subject to change without notice S...

Page 23: ...NOTES ...

Page 24: ...ional are registered trademarks and Cascade Room Adaptive Bass Optimization System and R A B O S are trademarks of Harman International Industries Incorporated Dolby is a registered trademark of Dolby Laboratories DTS is a registered trademark of DTS Inc Part No 819001082002 2005 Harman International Industries Incorporated All rights reserved ...

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