Infinity Intermezzo 4.1t Page 4 Owner'S Manual Download

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Caution

iii

Important Safety Precautions

Technology

Ceramic Metal Matrix Diaphragms

™

(C.M.M.D.)

Transducers

Room-Friendly Acoustical Design

Amplifier

Completing the Experience

Unpacking the Product/Included Accessories

Placement

Controls and Connections

Connection Methods 1–4

Room Adaptive Bass Optimization System

™

(R.A.B.O.S.)

Contents of the R.A.B.O.S.Test CD

R.A.B.O.S. Sound-Level Meter (RSLM)

What You Measure, What To Do

Adjusting the R.A.B.O.S. Equalizer

Final System Balance

Maintenance and Service

Specifications

R.A.B.O.S. Measurement Templates

Notes

Table of Contents

NTERMEZZO

4.1

WNER

’

UIDE

INTERMEZZO 4.1t

Summary of Contents for Intermezzo 4.1t

Page 1: ...Owner s Guide INTERMEZZO 4 1t ...

Page 2: ... opérations et l entretien service dans les manuels fournis avec l appareil ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND Este destello luminoso con un símbolo de punta de flecha dentro de un triángulo equilátero tiene el objectivo de alertar al usuario sobre la presencia de voltaje peligros...

Page 3: ...conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode See Figure A 16 Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the antenna or cable system This will prevent damage to the product due t...

Page 4: ...3 Placement 4 Controls and Connections 5 Connection Methods 1 4 8 Room Adaptive Bass Optimization System R A B O S 9 Contents of the R A B O S Test CD 9 R A B O S Sound Level Meter RSLM 14 What You Measure What To Do 17 Adjusting the R A B O S Equalizer 18 Final System Balance 19 Maintenance and Service 20 Specifications 21 R A B O S Measurement Templates 23 Notes Table of Contents INTERMEZZO 4 1t...

Page 5: ...transducers incorporate magnetic shielding and rigid cast frames that through our FEA computer modeling and scanning laser vibrometer measurements have been optimized to reduce resonances This ensures minimal distortion and incomparable performance The 12 low frequency transducer is the embodiment of uncompromised driver design The ceramic metal matrix cone is attached to a rigid cast aluminum fra...

Page 6: ...mpleting the Experience The technology and performance that make the Infinity Intermezzo 4 1t loudspeakers ideal for music listening also make them the perfect digital multichannel loudspeaker system To complete a home theater system Infinity has designed to the same precise standards as the Intermezzo 4 1t a matching 3 way center channel loudspeaker the Intermezzo 3 5c In addition Intermezzo 2 6 ...

Page 7: ... driver of each subwoofer face toward the outside and this is how the subs are packaged In some rooms however the system may perform better with the woofers facing the inside Feel free to experiment Surround Channels in a Home Theater System When used as part of a Dolby ProLogic THX or discrete 5 1 channel home theater system the surround speakers should be placed at the sides of and directed towa...

Page 8: ...evel Control R A B O S Controls 9 Center Frequency Adjustment J R A B O S Level K Bandwidth Adjustment 6 7 5 3 2 1 4 120V 60HZ 6A INPUTS POWER ON HIGH PASS FILTER BASS MODE AC FUSE 6A 250V OFF LOW LEVEL INPUT LOW LEVEL OUTPUT 3 2 1 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN INTERMEZZO 4 1t 8 K J 9 F L W CONTROLS AND CONNECTIONS Rear Panel Front Panel 4 INTERMEZZO 4 1t ...

Page 9: ...OSITION 3 SET HIGH PASS SWITCH 5 TO ON 1 2 3 4 BLACK NO STRIPE STRIPE RED 120V 60HZ 6A INPUTS POWER ON HIGH PASS FILTER BASS MODE AC FUSE 6A 250V OFF LOW LEVEL INPUT LOW LEVEL OUTPUT 3 2 1 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN INTERMEZZO 4 1t PREAMP OUTPUTS L R ONE CHANNEL SHOWN L R AMPLIFIER INPUTS BLACK STRIPE RED NO STRIPE LOOSEN TERMINALS INSERT BARE END TIGHTEN TERMINALS SET BASS MODE 4 ...

Page 10: ...SS SWITCH 5 TO OFF 1 2 3 4 ONE CHANNEL SHOWN FRONT SPEAKER OUTPUTS 120V 60HZ 6A INPUTS POWER ON HIGH PASS FILTER BASS MODE AC FUSE 6A 250V OFF LOW LEVEL INPUT LOW LEVEL OUTPUT 3 2 1 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN INTERMEZZO 4 1t AMPLIFIER PROCESSOR SUBWOOFER LFE OUTPUT TO SECOND 4 1t SPEAKER OUTPUT INPUT L R FRONT CHANNEL OUTPUT L R ONE CHANNEL SHOWN LOOSEN TERMINALS INSERT BARE END TI...

Page 11: ...the system for your particular listening room Earlier you placed the loudspeakers in their 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 until your speakers deliver their full potential When the speakers are moved inward toward each other there is...

Page 12: ...ers 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 profes...

Page 13: ...LM 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 Test 5 95Hz Test 6 ...

Page 14: ...in this test The level control 8 should be set to the mid position 5 Cue Track 3 and Pause II 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 0dB indication is about 94dB At this level frequencies below 100...

Page 15: ...00Hz X axis and 2dB Y axis Place a dot at that point See Figure 9 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...

Page 16: ...e 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 O S optimization Frequency The frequency of the R A B O S equalizer may be adjusted to any one of nineteen frequencies from 20Hz to 80Hz This defines where you are going ...

Page 17: ...ce 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 15 Be sure to align the horizontal lines of the Width Selector with those of the Measurement Template Apply p...

Page 18: ...cases The next section contains several other examples What You Measure WhatTo 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 pages are examples of what yo...

Page 19: ...tion 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 17 Example 3 Peak Adjacent to a Dip Response dips can occur at any frequency sometimes...

Page 20: ...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 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 p...

Page 21: ...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...

Page 22: ... 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 10 Setting the Subwoofer Test Level You ...

Page 23: ...nnections 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 ...

Page 24: ...e than 0 1 THD 2nd and 3rd Order Harmonic Distortion 1 20Hz 20kHz 95dB SPL Crossover Frequencies 80Hz 500Hz 2800Hz 24dB Octave Dimensions 51 1 2 x 12 1 2 x 27 1 8 1308mm x 318mm x 689mm Weight 93 lb 42 3kg Infinity continually strives to update and improve existing products as well as create new ones The specifications and construction details in this and related Infinity publications are therefor...

Page 25: ...21 INTERMEZZO 4 1t Frequency Width Frequency Width Hz dB Hz dB ...

Page 26: ...22 INTERMEZZO 4 1t Frequency Width Frequency Width Hz dB Hz dB ...

Page 27: ...23 INTERMEZZO 4 1t NOTES ...

Page 28: ...itysystems com Trademarks of Dolby Laboratories THX is a registered trademark of Lucasfilm Ltd DTS is a registered trademark of Digital Theater Systems Inc BASH is a registered trademark of Indigo Corporation Infinity is a registered trademark of Infinity Systems Inc Printed in USA 3 00 Part No 336205 001 ...

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