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Infinity Kappa Subwoofer Owner's Manual

230v
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Kappa Subwoofer
Powered Subwoofer
(230V)
Owner's Manual
®

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Summary of Contents for Infinity Kappa Subwoofer

  • Page 1 Kappa Subwoofer Powered Subwoofer (230V) Owner’s Manual ®...

  • Page 2: Unpacking The Subwoofer

    About this product... Introduction The Infinity Kappa Series Powered Subwoofer has been designed to enhance the bass frequencies of any audio system. This subwoofer may be used with speakers of any size. Obviously, the greatest bass enhancement will be achieved when the subwoofer is connected with speakers that do not have the capability to create deep bass.

  • Page 3: Important Safety Precautions

    14. Wall or Ceiling Mounting. The product should be mounted to a wall or ceiling only as recommended by the manufacturer. 15. Heat. The product should be situated away from heat sources such as radiators, heat registers, stoves or other products (including amplifiers) that produce heat. Kappa Series Powered Subwoofer – Owner’s Manual...

  • Page 4: A Few Suggestions

    Whenever changing cables, pulling plugs, etc., ALWAYS TURN OFF ALL EQUIPMENT, Important! 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. Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 5 Should you have questions relating to your installation, strongly influence it is advisable to call your Infinity dealer for advice. performance... 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 6 3 or 4 inches (8-10 cm) from the wall. We suggest trying this location first because in an orchestra, the bass instruments are usually located in the back and to the right (see Figure 1). Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 7 It is essential, to enable the RABOS system to work optimally, to direct all bass in the system to the Kappa subwoofer by setting all main speakers to SMALL, even if you are using main speakers that reproduce frequencies below 100Hz.

  • Page 8: Preamp Outputs

    Disconnect the jumper or cable that links your preamplifier ouput and power amplifier input • Connect the preamp output to the kappa subwoofer line input • Connect the kappa suwoofer line output to the power amplifier input (MAIN IN) Figure 3. (ONE CHANNEL SHOWN)
  • Page 9 Method 3 • Connect the subwoofer output of your AV receiver to the Kappa subwoofer line input using a Y-connector*. • On our AV receiver, go to the SPEAKER CONFIGURATION section in the receiver's set-up menu and set the front Left/right main speakers to SMALL and the subwoofer to ON.

  • Page 10: Operation

    To reduce low bass without changing mid-bass, turn the Crossover Frequency control UP and the Volume control DOWN. In case of the configuration depicted on figure 3 or if you are using the Kappa 200 as your satellite speaker, it is recommended that you set the Crossover Frequency Control on the subwoofer to 80Hz.

  • Page 11: Phase Control

    Replacing the fuse The Kappa Subwoofer uses a built-in fuse to protect the amplifier. To replace a blown fuse with a new one, first turn the subwoofer's main power switch Off and disconnect the AC power cord. Remove the old fuse and replace it with a new one of the exact same value and rating: 2.5A, slow blow, 250V.
  • Page 12 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 each Kappa Subwoofer. After adjustment, the test sequence is repeated to confirm your settings.
  • Page 13 Preparations Before beginning R.A.B.O.S. tests, please check the following: • Make sure that all three R.A.B.O.S. controls on the Kappa Subwoofer are turned fully clockwise or switch the R.A.B.O.S. selector to the Off position. • Set the tone controls (Bass and Treble) to their center or flat positions.

  • Page 14: Sound-Level Meter (Rslm)

    The RSLM is a battery-operated, handheld, acoustic measurement device specifically Sound-Level Meter 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 (RSLM) power-on, out-of-range signals and a low battery.

  • Page 15: Rslm Placement

    RSLM display indicates -10 dB. See Figure 6. 0 dB Figure 6 RSLM indicating the correct system level to begin tests (-10 dB) When you have completed this adjustment, press Pause II. Batt Kappa Series Powered Subwoofer – Owner’s Manual...

  • Page 16: Setting The Subwoofer Test Level

    0 dB reading is observed on the highest peak without triggering the over-range indication. Later, you will rebalance the subwoofers to the main speakers. The Kappa Subwoofers should be shipped with the three R.A.B.O.S. controls, set to fully clockwise positions, and all measurements should be conducted with their level controls in this position.

  • Page 17: Performing Low-Frequency Measurements

    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 10. Figure 10 Indicating an under-range test Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 18 Figure 11. Figure 11 Completed R.A.B.O.S. template Now connect the dots as shown in Figure 12. This will make interpretation of the data much easier. Figure 12 Test example with dots connected Kappa Series Powered Subwoofer – Owner’s Manual...

  • Page 19: What Does A Parametric Equalizer Do

    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 Kappa, this adjustment is abbreviated as “Width.” Only parametric equalizers allow independent adjustment of all three parameters.
  • Page 20 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. Figure 15 Placement of the Bandwidth Selector Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 21 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 72Hz 77Hz 80Hz 85Hz 90Hz 95Hz 100Hz 92 ÷ 10 = -9.2 Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 22 Determine the appropriate level using the technique described earlier. In this example, -9 dB would be best. Enter the level in the field provided. Skip to the “Adjusting the R.A.B.O.S. Equalizer” section on page 28. Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 23 Therefore, a -8 dB setting would be excessive. The 52Hz peak stops at -2dB. Subtracting 2 from 8 yields the correct setting, -6 dB. Enter -6 in the Level field. Skip to the “Adjusting the R.A.B.O.S. Equalizer” section on page 28. Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 24 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: Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 25 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: Figure 20 Narrow Response Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 26 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: Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 27 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: Figure 22 Ideal response, no EQ needed Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 28 First, make sure that the R.A.B.O.S. selector is in the On position. There are three equalizer adjustments on the Kappa Subwoofer. Top to bottom, they are marked “Freq” (frequency), “Level” (level) and “Width” (width). Each control has 21 positions.

  • Page 29: Final System Balance

    This concludes the R.A.B.O.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. Kappa Series Powered Subwoofer – Owner’s Manual...

  • Page 30: Care Of Your Subwoofer

    If everything seems to be in good working order and the subwoofer still malfunctions, Important! DO NOT ATTEMPT ANY REPAIRS! Contact your Infinity dealer and get the name of the authorized Infinity service center near you. Kappa Series Powered Subwoofer – Owner’s Manual...

  • Page 31: Performance Data

    EN 55013/A12:1994 EN 55020:1994 EN 55022:1994 class B EN 61000-3-2:1995 EN 61000-3-3:1995 R. Marshall Harman Consumer International FRANCE 12/01 Kappa Series Powered Subwoofer – Owner’s Manual...
  • Page 32 ® 2, route de Tours 72500 Château-du-Loir France INF KAPPA SUB 230...

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