JL Audio f110 Front Panel Controls in Detail, Power Switch, Automatic Room Optimization A.R.O

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FRONT PANEL CONTROLS IN DETAIL

Power Switch

The “Power” switch determines the operational readiness of the Fathom subwoofer and should be the only switch used to turn the Fathom on and off. Do not use a power strip switch, switched outlet or any other external switch as these may result in undesirable and potentially damaging transient pops. Do not unplug the Fathom’s AC power cord while the unit is turned on.

The power switch has three positions:

“On”: The Fathom is fully powered at all times. Front panel lights are on unless they have been turned off via the “Lights” switch.

“Off ”: The Fathom’s internal power amplifier is powered down. In this state, a negligible current draw will exist for operating the main power relays. All front panel lights are off .

“Auto”: The Fathom will power up its internal amplifier when an audio signal is present at any of its inputs and will power down the internal amplifier if no signal has been detected at its inputs for thirty (30) minutes. When dormant, the Fathom will draw a very small amount of current (< 5 watts) to power its signal-sensing circuitry. Front panel lights will turn off when the Fathom powers down and light when the Fathom powers up (unless they have been turned off via the “Lights” switch).

In the unlikely event that the Auto feature is not sensitive enough for a particular system, use a Y-cable adaptor to split the incoming signal into both RCA or XLR inputs on the Fathom. This will increase the input sensitivity by 6 dB. Please be aware that if the Auto sensitivity is too high or if there is significant noise on the input cable, the Fathom may not turn off as desired. If this happens, remove the 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 largest acoustic response peaks in your home theater at the main listening seat, greatly improving the in-room low-frequency response. Calibration of the A.R.O. system is fully automated. Please consult the next section of this manual for details on how to use the A.R.O. system.

Using the included JL Audio calibration microphone, the A.R.O. calibration procedure takes less than three minutes. In brief, you will connect the included microphone to the “Calibration Mic.” input, press the Calibrate button, and then hold the microphone at ear height in your main listening seat during the test.

A noise sequence will be played through the Fathom subwoofer, and the room response will be automatically measured, analyzed and equalized to eliminate the single largest acoustic room response peak at your listening seat. For detailed

instructions on the A.R.O. setup procedure, refer to pages 29-30.

Calibration Mic. Input

This input is for connecting the supplied JL Audio calibration microphone to the Fathom subwoofer. Connect one end of the supplied cable to the microphone and the other end to this jack prior to using the A.R.O. system. The A.R.O. system is specifically calibrated to this microphone and its connection scheme is specific to the supplied microphone. The calibration sequence will not operate when a different microphone is connected or if no microphone is connected.

Demo Button

The Demo button triggers a 20 second long tone sequence that briefly demonstrates the sound of the Fathom subwoofer. The Demo function is useful for

IMPORTANT

PROCESSOR (BALANCED OUTPUTS)

RECEIVER / PROCESSOR (UNBALANCED OUTPUTS)

PRE OUT

FRONT L REAR CENTER

OUTPUTS

OR

FRONT R REAR SUB

es with part 15 of the FCC rules. Operation is wing two conditions: (1) this device may not rference, and (2) this device must accept any ved, including interference that may cause n.

FATHOM REAR CONTROLS (MASTER)

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Fathom f110

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Contents F110 Important Safety Instructions Risk of Electric Shock Do not OpenFathom f110 Introduction Table of ContentsFCC Compliance Statement Product Overview Placing Your Fathom in Your Listening Room Recommended Subwoofer Placement Options for One Fathom #&454&5*/104*5*0/4Special Considerations for BUILT-IN Installations Rear-view of cabinet installUsing Two Fathoms Recommended Subwoofer Placement Options for Two FathomsFathom f110 Unpacking Your Fathom Detailed instructions on unpacking the subwooferFront Control Panel Rear Controls and Connectors Automatic Room Optimization A.R.O Power SwitchFront Panel Controls in Detail Calibration Mic. InputDefeat Button Input Mode IndicatorsLevel Mode Calibrate ButtonLP Filter Master Level KnobLights LP FreqPolarity PhaseF. Trim Technical Notes Connecting Your FathomBalanced Inputs Unbalanced Inputs RCA-type connection Tip PositiveMaster / Slave Switch Input Mode SwitchesGrounded / Isolated Switch IEC-Style AC Connector Output to Slave ConnectorOutput to Slave connector is designed to be used as follows Fathom Rear Controls Master Processor Stereo Active Crossover Balanced Outputs Fathom f110 On your Home Theater Receiver or Preamp/Processor Recommended Setup ProceduresPreparation for Setup Process On your Active Crossover or Bass Management ProcessorOn the Fathom’s Front Panel Polarity and Phase Adjustment Subwoofer System SetupLevel Setting Applying Automatic Room Optimization A.R.O Extreme Low Frequency e.l.f. Trim Is the Fathom magnetically shielded? Frequently Asked QuestionsCan I place objects on my subwoofer? Cleaning Your Fathom Gloss-black modelsTroubleshooting Fathom f110 For Service Information in the U.S.A. please call Limited Warranty / Service InformationIf you need service on your JL Audio product International WarrantiesFeatures

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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