JL Audio Fathom f112 Owner's Manual
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JL Audio Fathom f112 Owner's Manual

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Summary of Contents for JL Audio Fathom f112

  • Page 1 f112 f113 Owner’s Manual...

  • Page 2: Important Safety Instructions

    Page 2 | Fathom f112 & f113...
  • Page 3 THIS SUBWOOFER IS CAPABLE OF PRODUCING VERY HIGH SOUND PRESSURE LEVELS. PLEASE EXERCISE RESTRAINT IN ITS OPERATION TO WARNING PROTECT YOUR HEARING FROM PERMANENT DAMAGE. | Fathom f112 & f113 Page 3...

  • Page 4: Table Of Contents

    INTRODUCTION Radially Cross-Drilled Pole Piece Congratulations on your purchase of a JL Audio Fathom powered subwoofer (U.S. Patent #6,243,479) system. This product has been critically engineered to deliver exceptional This innovative venting system greatly performance in your home theater or audio system for many years to come.

  • Page 5: Product Overview

    Fathom to reproduce powerful low- frequency events with stunning impact and unprecedented accuracy. Derived from JL Audio’s legendary W7 design platform, the Fathom drivers offer peak- to-peak excursion capabilities well in excess of 2.5 inches (63 mm - f110), 3 inches (76 mm - f112), and 4 inches (101 mm - f113) to comfortably handle the dynamics of the most demanding program material.

  • Page 6: Placing Your Fathom In Your Listening Room

    We recommend that you avoid placing the Fathom near windows to prevent rattling and sound transmission to the outside world. Page 6 | Fathom f112 & f113...
  • Page 7 Recommended Subwoofer Placement Options for One Fathom | Fathom f112 & f113 Page 7...
  • Page 8 AT LEAST 60 square inches (386 sq.cm.) for the f110. These areas are equal to the woofer cone area for each model and will ensure that the Fathom’s output is not choked by the custom cabinet. Page 8 | Fathom f112 & f113...
  • Page 9 – the benefits can be substantial. High-resolution measurements and professional system calibration are recommended for the best possible results & system performance. | Fathom f112 & f113 Page 9...
  • Page 10 – the benefits can be substantial. High-resolution measurements and professional system calibration are recommended for the best possible results & system performance. Recommended Subwoofer Placement Options for Four Fathoms Page 10 | Fathom f112 & f113...

  • Page 11: Unpacking Your Fathom

    Place both split-foam inserts in the carton. 12. Remove the protective cloth cover and place in the carton. IMPORTANT! PLEASE RETAIN ALL PACKAGING FOR SAFE TRANSPORTATION IMPORTANT OF THE SUBWOOFER AND FOR ANY FUTURE SERVICE NEEDS. | Fathom f112 & f113 Page 11...

  • Page 12: Front Control Panel Layout

    14-15 page 15 page 16 page 16 page 17 Power Input Mode Master level lP Filter e.l.f. trim (dB) Polarity page 14 page 15 page 16 page 16 page 17 page 17 Page 12 | Fathom f112 & f113...

  • Page 13: Rear Control And Connector Panel Layout

    The labeled Figure below depicts the rear panel of a Fathom subwoofer. The f112 and f113 have identical layouts. Unbalanced Output to Inputs Slave Connector page 19 page 21 IEC-Style AC Input Mode Balanced Inputs Connector Switches page 18 page 21 page 20 | Fathom f112 & f113 Page 13...

  • Page 14: Front Panel Controls In Detail

    Y-cable adaptor or look for the noise source in the upstream components. Automatic Room Optimization (A.R.O.) A powerful feature of the JL Audio Fathom subwoofers is their innovative Automatic Room Optimization (A.R.O.) technology. This one-touch system serves to eliminate the single largest acoustic response peak in your home theater at the main listening seat, greatly improving the in-room low-frequency response.
  • Page 15 Calibrate Button The Calibrate button activates the ARO test sequence. The calibration routine will not start unless the supplied JL Audio test microphone is plugged into the Fathom subwoofer. Once the calibration routine is complete, the green light in the center of the “Calibrate”...
  • Page 16 LP Filter switch is set to “Off”. 80 Hz is a commonly used filter frequency and usually serves as a good starting point for adjustments. Page 16 | Fathom f112 & f113...
  • Page 17 Phase control and listen for better defined mid-bass and a smoother transition between the subwoofer and satellite speaker systems. If no single setting sounds better than another, leave the Phase control at 0 degrees. | Fathom f112 & f113 Page 17...

  • Page 18: Connecting Your Fathom(S)

    Since the Fathom is inherently a Appropriate balanced cables are available from your JL Audio dealer and are “mono” or single channel device, you can not included with the Fathom.
  • Page 19 IMPORTANT: IF NOISE EXISTS AFTER CONNECTION, FATHOMS ALLOW FOR GROUNDING OR ISOLATION OF THE UNBALANCED INPUTS. PLEASE IMPORTANT REFER TO THE “INPUT MODE SWITCHES” SECTION ON PAGE 20 OF THIS MANUAL FOR FURTHER INFORMATION ON MINIMIZING NOISE. | Fathom f112 & f113 Page 19...
  • Page 20 Fathom in “Slave” mode. If you are utilizing outboard signal processing and level-matching controls, activating the “Slave” mode will prevent anyone from affecting system parameters with the manual controls on the Fathom. Page 20 | Fathom f112 & f113...
  • Page 21 “Slave” Fathom’s “Left or Mono” XLR balanced input. Etc, etc. (up to ten Fathoms may be connected in this configuration).Appropriate balanced cables with XLR terminations are available from your JL Audio dealer and are not included with the Fathom. Technical Notes: •...
  • Page 22 FATHOM REAR CONTROLS (MASTER) dotted. You will only use one of these input connection methods (not both). WARNING! TURN OFF THE FATHOM AND ALL OTHER EQUIPMENT IN THE WARNING SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS! Page 22 | Fathom f112 & f113...
  • Page 23 Connections between the “Master” and “Slave” Fathoms and between “Slave” Fathoms are via balanced XLR cables ONLY. WARNING! TURN OFF THE FATHOM(S) AND ALL OTHER EQUIPMENT IN WARNING THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS! | Fathom f112 & f113 Page 23...
  • Page 24 Fathom connected as shown on this diagram. See “Connection Diagram 2” on page 23 for slave connection explanation. WARNING! TURN OFF THE FATHOM AND ALL OTHER EQUIPMENT IN THE WARNING SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS! Page 24 | Fathom f112 & f113...
  • Page 25 Fathom connected as shown on this diagram. See “Connection Diagram 2” on page 23 for slave connection explanation. WARNING! TURN OFF THE FATHOM(S) AND ALL OTHER EQUIPMENT IN WARNING THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS! | Fathom f112 & f113 Page 25...

  • Page 26: Recommended Setup Procedure

    Select a low-pass filter frequency of 80 Hz (12dB/octave slope) 2. High-Pass Filter Frequency Select a high-pass filter frequency of 80 Hz (12dB/octave slope) 3. Low-Pass (Subwoofer) Output Level Set the subwoofer output level to “0” or its middle position. Page 26 | Fathom f112 & f113...
  • Page 27 Flip the “Polarity” switch to “0”. 8. “phase (deg.)” Knob Rotate the “phase” knob to “0” degrees 9. A.R.O. Defeat Switch Press the A.R.O. defeat switch so that the red light in the switch remains lit. | Fathom f112 & f113 Page 27...
  • Page 28 For each new position, start with the polarity and phase controls at “0” and repeat the setup process beginnng with Step 1. IMPORTANT! WRITE DOWN ALL SETTINGS PERFORMED IN STEPS 1-3 FOR IMPORTANT FUTURE REFERENCE. Page 28 | Fathom f112 & f113...
  • Page 29 CORRUPT THE CALIBRATION MEASUREMENTS. 4) Applying Automatic Room Optimization (A.R.O.) You are now ready to apply the power of JL Audio’s exclusive Automatic Room Optimization system. This system will measure the response of the subwoofer at your primary listening seat and apply a powerful equalizer to tame the primary room mode, resulting in smoother, more accurate bass performance.
  • Page 30 Feel free to experiment and listen to a variety of demanding material until you find the best match for your room and your tastes. Your Fathom is now optimized for maximum bass performance at your listening seat. Congratulations! Page 30 | Fathom f112 & f113...

  • Page 31: Frequently Asked Questions

    / video components. If you are going to be away from home for several days, it is also a good idea to unplug your home theater components to prevent damage from unexpected storms or power line conditions. | Fathom f112 & f113 Page 31...

  • Page 32: Cleaning Your Fathom

    Fathom. When in doubt, test the cleaning product on the underside of the cabinet and let it sit for several days before committing to its use on visible portions of the cabinet. Page 32 | Fathom f112 & f113...

  • Page 33: Troubleshooting

    4. If your other speakers play, but the Fathom does not, try changing the cable that connects the Fathom to the system. 5. If the problem persists, call your dealer or JL Audio Technical Support for assistance. The bass level has changed.
  • Page 34 Page 34 | Fathom f112 & f113...

  • Page 35: Limited Warranty / Service Information

    JL Audio for service. Cosmetic damage due to accident or normal wear and tear is not covered under warranty.

  • Page 36: Specifications

    . j l a u d i o . c o m “JL Audio”, “Fathom” and the JL Audio logo are registered trademarks of JL Audio, Inc.,“Ahead of the Curve” is a trademark of JL Audio, Inc. Due to continuous product development, all specifications are subject to change without notice.

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Fathom f113

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