Infinity 1.2s Owner's Manual
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Infinity 1.2s Owner's Manual

Infinity systems intermezzo series loudspeakers model intermezzo 1.2s owner's guide
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Summary of Contents for Infinity 1.2s

  • Page 1 ™ NTERMEZZO Owner’s Guide...
  • Page 2 DO NOT REMOVE COVER (0R BACK) NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL THIS INFINITY PRODUCT IS DESIGNED FOR 120-VOLT USE ONLY! FOR DETAILED SAFETY PRECAUTIONS, PLEASE SEE FOLLOWING PAGE IN THIS OWNER’S MANUAL FOR “IMPORTANT SAFETY INSTRUCTIONS.”...
  • Page 3 (including amplifiers) that produce heat. 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) INTERMEZZO 1.2s...

  • Page 4: Table Of Contents

    NTERMEZZO Table of Contents INTERMEZZO 1.2s ’ WNER UIDE Caution Important Safety Precautions Technology Ceramic Metal Matrix Diaphragms ™ (C.M.M.D.) Room-Friendly Acoustical Design Unpacking the Product/Included Accessories Placement Controls and Connections Connection Methods 1–4 Operation Room Adaptive Bass Optimization System Contents of the R.A.B.O.S.Test CD...

  • Page 5: Technology

    Infinity has developed the proprietary Room Adaptive Bass Optimization System™ (R.A.B.O.S. ™ ). With a single band of parametric equalization, the Intermezzo 1.2s can be adjusted to tame any problematic room bass resonances below 80Hz. We hope you enjoyed this brief introduction to the technology of Intermezzo loudspeakers.

  • Page 6: Unpacking The Product/Included Accessories

    Keep the shipping carton and packing materials for future use. Included Accessories . . . Grille AC Cord R.A.B.O.S. Kit (1) Batt Power Sound-Level Meter Graph Templates Adjustment Key INTERMEZZO 1.2s Decorative Side Panel R.A.B.O.S. Test CD Bandwidth Selector...

  • Page 7: Placement

    Should you have questions relating to your installation, it is advisable to call either your dealer or Infinity’s Customer Service Department for advice. The performance of the subwoofer is directly related to its placement in the listening room and how you align the subwoofer with its satellite speakers.

  • Page 8: Controls And Connections

    Front Panel AC-Cord Input Power Switch Speaker-Level Inputs Speaker-Level Outputs High-Level High-Pass Filter Switch Low-Level-Input Connectors Low-Level-Output Connectors Phase Switch Low-Pass Filter Switch Variable Low-Pass Filter Adjustment INTERMEZZO 1.2s ONNECTIONS – – INPUTS OUTPUTS HIGH-LEVEL HIGH-PASS – – FILTER CAUTION...

  • Page 9: Connection Methods

    If none of these system configurations seem to match yours, consult your dealer or Infinity customer service for direction on how best to hook up your system. For Methods 2, 3a, 3b and 4, make sure all bass-management features are properly set.The Audio channels should all be set to...
  • Page 10 Method 2 SET LOW-PASS FILTER TO “ON” (ONE CHANNEL SHOWN) PREAMP OUTPUTS Method 3a SET LOW-PASS FILTER TO “OFF” INTERMEZZO 1.2s – – POWER INPUTS OUTPUTS AC FUSE 120V – 60HZ 6A 6A 250V – – CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN...
  • Page 11 I N T E R M E Z Z O 1 . 2 s LOW- LOW- PHASE LOW-PASS LOW-PASS LEVEL LEVEL FILTER FILTER FILTER INPUT OUTPUT I N T E R M E Z Z O 1 . 2 s PHASE LOW- LOW- LOW-PASS LOW-PASS LEVEL LEVEL FILTER FILTER INPUT OUTPUT INTERMEZZO 1.2s...

  • Page 12: Operation

    Final Positioning After correctly connecting the Intermezzo 1.2s and verifying that both the subwoofer and main speakers are playing, it is time to optimize the system for your particular listening room. Earlier, you placed the subwoofer in its general location.

  • Page 13: Room Adaptive Bass Optimization System ™ (R.a.b.o.s.)

    Preparations Before beginning R.A.B.O.S. tests, please check the following: • Make sure all three R.A.B.O.S. controls on the Intermezzo 1.2s are turned fully clockwise. • Make sure the loudness contour (if any) on your receiver/ processor/preamp is turned off.

  • Page 14: Contents Of The R.a.b.o.s.test Cd

    THE R.A.B.O.S. SOUND-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.

  • Page 15: Setting The Subwoofer Test Level

    Adjusting the subwoofer levels for a 0dB peak 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. IGURE R.A.B.O.S. Measurement Template INTERMEZZO 1.2s until the peak...
  • Page 16 See Figure 9. IGURE Indicating an under-range test INTERMEZZO 1.2s When finished, press Skip 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...

  • Page 17: What Does A Parametric Equalizer Do

    100Hz would be 200Hz. One octave below 100Hz is 50Hz. In the section that follows, we will discuss the use of the Width Selector. INTERMEZZO 1.2s...

  • Page 18: Using The Width Selector

    Selector over the response peak, as shown in Figure 14. Be sure to align the horizontal lines of the Width Selector with those of the Measurement Template. INTERMEZZO 1.2s IGURE 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.

  • Page 19: What You Measure, What To Do

    Example 1. Single Dominant Peak: IGURE Single dominant peak This is the most common result of speaker/room interaction. Apply the Width Selector as described in Figure 14. Align the center-line of the Selector over the center of the peak, as shown in Figure 15.
  • Page 20 -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 18. INTERMEZZO 1.2s Example 3. Peak Adjacent to a Dip: IGURE Dip above or below peak Response dips can occur at any frequency, sometimes immediately adjacent to the peak you want to correct.Two...
  • Page 21 Example 4. Narrow Response: IGURE 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 peak, as shown in Figure 14.

  • Page 22: Adjusting The R.a.b.o.s. Equalizer

    There are three equalizer adjustments on the Intermezzo 1.2s. Left to right, they are marked “F” (frequency), “L” (level) and “W” (width). Each control has 21 positions. These are numbered from left to right.

  • Page 23: Final System Balance

    R.A.B.O.S. controls. Simply count the number of detents necessary, indicated by the results of your R.A.B.O.S.Test. Intermezzo 1.2s R.A.B.O.S. Controls 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.

  • Page 24: Maintenance And Service

    AINTENANCE AND ERVICE The Intermezzo 1.2s may be cleaned using a soft cloth, dampened with water only, to remove fingerprints or to wipe off dust. The grille may be gently vacuumed. Stains may be removed with an aerosol cleaner, following its instructions. Do not use any solvents on the grille.

  • Page 25: Specifications

    (387mm x 464mm x 349mm) Weight: 60 lb (27.3 kg) 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. INTERMEZZO 1.2s...
  • Page 26 Frequency Frequency INTERMEZZO 1.2s Width Width...
  • Page 27 Frequency Frequency Width Width INTERMEZZO 1.2s...
  • Page 28 © 2000 Infinity Systems, Inc., 250 Crossways Park Drive, Woodbury, NY 11797 USA (800) 553-3332 (USA Only) *Trademarks of Dolby Laboratories. BASH is a registered trademark of Indigo Corporation.THX is a registered trademark of Lucasfilm, Ltd. DTS is a registered trademark of Digital Theater Systems, Inc.

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