TROUBLESHOOTING

No sound from subwoofer.

1.Verify that Fathom is plugged in, turned “ON” & that front panel lights are “ON”. If the Fathom will not power up, check the circuit breaker that feeds its outlet.

2.Test subwoofer using DEMO button on front panel – if sub emits demo tones the subwoofer’s internal circuitry is fine and an input problem is likely. Check the input cable connections at the Fathom and at the receiver/preamp/processor.

3.Verify that your receiver’s subwoofer settings have not changed

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.

1.Make sure your level settings (on the Fathom and in your receiver/preamp/ processor) have not changed.

2.If you are using the Fathom’s “Master Level” knob to set the subwoofer level, confirm that the “Level Mode” switch is set to “Variable”.

3.Verify the position of the ELF Trim knob.

Hums or other unusual noises from your Fathom

1.See Input Mode discussion on page 20 of this manual, especially if any upstream components, cables, etc., have recently changed.

2.Turn off the Fathom, disconnect all its input and output signal cables, turn the Fathom back on. If the noise disappears, the noise is being caused elsewhere in your system.

Bass sounds “muddy” or “too heavy”.

1.Try decreasing the 28 Hertz level using the “e.l.f. trim” control. Muddy bass can sometimes be caused by too much low frequency output in a moderately sized room.

2.Decrease the overall subwoofer level.

3.Verify your receiver’s subwoofer settings.

4.Try a diff erent subwoofer or main listening seat location. Changing one or the other can have a HUGE eff ect on how your system sounds. See the placement discussion on pages 6-10 of this manual.

A.R.O. Calibration attempt gives fast blinking Calibrate light

1.Be sure that the included JL Audio Microphone is properly plugged into the front panel jack. Calibration will ONLY proceed with the JL Audio microphone connected. Connecting any other mic will cause the calibration to fail.

2.If calibration fails with the JL Audio microphone properly connected, try running calibration again with the microphone placed ~ 6 feet away from the f110. If calibration fails again, the microphone or microphone cable is bad and will need to be replaced. Contact JL Audio Customer Service.

Your Fathom is clearly audible outside of your house.

1.Revisit the “Master Level” setting on your Fathom(s) or your home theater receiver/ preamp/processor.

2.Inquire with your JL Audio dealer about noise isolation strategies.

3.Move the Fathom away from windows.

Fathom f110

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JL Audio f110 owner manual Troubleshooting
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f110 specifications

The JL Audio Fathom f110 is a compact yet powerful subwoofer designed to deliver exceptional low-frequency performance in a variety of listening environments. This subwoofer is an integral component of the Fathom series, which is renowned for its commitment to high-quality sound and advanced technology. The f110 is designed to blend seamlessly with both audiophile-quality music systems and home theater setups.

One of the key features of the f110 is its 10-inch subwoofer driver, which is engineered for high output and low distortion. The driver is constructed with advanced materials, including a cast-alloy basket and a high-temperature voice coil, ensuring durability and reliability. This design allows the f110 to produce deep, precise bass with minimal cone breakup.

The f110 is powered by a robust onboard amplifier that delivers an impressive 1,000 watts of peak power, allowing it to handle dynamic audio passages with ease. This amplifier utilizes JL Audio's Differential Drive technology, which enables the driver to achieve exceptional efficiency and linearity. As a result, the f110 can deliver powerful bass without sacrificing clarity or definition.

In addition to its impressive driver and amplifier, the Fathom f110 is equipped with sophisticated DSP (Digital Signal Processing) capabilities. This technology allows for precise room correction and equalization, ensuring that the subwoofer performs optimally in any environment. The user-friendly interface allows listeners to adjust various parameters, such as room size, frequency response, and phase alignment, to achieve the desired sound profile.

The cabinet of the f110 is constructed from high-quality MDF and features a sophisticated design that minimizes internal resonances. Its sleek and modern exterior includes an elegant finish that complements any décor, providing an aesthetically pleasing addition to any audio setup.

Connectivity is also a top priority for the f110, as it includes multiple inputs and outputs, allowing for easy integration with various audio systems. The subwoofer can be connected via line-level inputs or speaker-level inputs, providing versatility for different configurations.

Overall, the JL Audio Fathom f110 is a powerful and versatile subwoofer that epitomizes quality and performance. Its combination of advanced technologies, high-output capabilities, and user-friendly features make it a superior choice for any audio enthusiast looking to enhance their listening experience. Whether for music playback or home theater applications, the f110 delivers an impactful and immersive sound experience.
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