RECOMMENDED SETUP PROCEDURES (continued)

Subwoofer System Setup:

Once you have set the controls on your home theater receiver or preamp/ processor and on your Fathom(s) to the settings recommended on pages 26 and 27, you are ready to begin setting up your Fathom for optimum performance.

1) Level Setting

Using familiar music or movie material with deep bass content, adjust the subwoofer level to blend with the other speakers using your receiver or preamp / processor’s subwoofer level control. This method is more immune to tampering than using the Fathom’s “Master Level” knob (think toddlers or curious visitors). In the unlikely event that the subwoofer level control in your receiver or preamp/processor cannot be turned up enough to level match the Fathom, return

that control to “0”. Then, flip the Fathom’s “Level Mode” switch to “Variable” and with “0” as your reference point (REF mode gain and Variable “0” gain are identical) use the “Master Level” control to level match the subwoofer with the other speakers. MAKE NOTE OF THIS SETTING FOR FUTURE USE.

For more detailed information on your Fathom’s level setting controls, please refer to the “Level Mode” and “Master Level” sections on pages 15 - 16 of this manual.

2) Polarity and Phase Adjustment

It is often helpful to have a second person operating these controls so that you can easily hear the changes from the primary listening seat.

Listening to familiar source material (preferably music with good upper bass and midbass response), flip the “Polarity” switch from “0” to “180” and listen for differences. The correct setting will sound most natural with the best upper bass punch and articulation. If both sound similar, choose “0”.

Once Polarity is set, use the same music material to audition different “Phase” control settings and choose the one that further enhances the upper and midbass response. If you can’t hear a difference, set the control to “0.”

3) Experiment with alternative subwoofer locations (if necessary).

If you are satisfied with the basic performance of your subwoofer you are ready to move on to the next step. If not, we recommend that you experiment with the position of your subwoofer until you are pleased with its basic performance. Experimentating with placement is KEY to a superior sounding system. Moving the subwoofer just a few feet can have a significant effect on the smoothness of the bass. 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 f212

Page 27 Page 29
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Image 28
JL Audio f212 owner manual Subwoofer System Setup, Level Setting, Polarity and Phase Adjustment
Page 27 Page 29

f212 specifications

The JL Audio F212 is a premier subwoofer designed to deliver exceptional low-frequency performance for audiophiles and music enthusiasts alike. As part of JL Audio’s renowned subwoofer offerings, the F212 stands out due to its advanced engineering and innovative technology, providing an unparalleled audio experience.

At the heart of the F212 is its unique dual 12-inch driver design, which enables it to reproduce deep bass notes with remarkable clarity and power. The drivers are engineered using JL Audio’s proprietary technology, including a high-excursion suspension system that allows for maximum cone movement without distortion. This ensures that the F212 can handle high power levels while maintaining accuracy across the frequency spectrum.

One of the standout features of the F212 is its robust construction. The subwoofer enclosure is built from high-quality MDF (medium-density fiberboard), designed to minimize resonance and prevent unwanted vibrations that could color the sound. The enclosure is also meticulously tuned for optimal performance, allowing the subwoofers to operate efficiently and deliver rich, immersive bass.

The F212 utilizes advanced thermal management technologies, ensuring that the drivers remain cool during prolonged use. This is achieved through strategically placed venting systems that promote airflow and minimize heat buildup. As a result, users can enjoy continuous, powerful bass performance without the concern of overheating.

In addition to its impressive physical characteristics, the F212 is equipped with sophisticated signal processing capabilities. This allows for seamless integration into any audio system, whether for home theater or high-fidelity music reproduction. The subwoofer features adjustable crossover settings, phase control, and volume adjustments, enabling users to tailor the sound to their specific preferences and room acoustics.

Another noteworthy aspect of the F212 is its versatility. It can be used in various applications, from home audio setups to professional sound reinforcement, making it an ideal choice for anyone seeking to enhance their bass performance. With its combination of power, precision, and advanced technology, the JL Audio F212 stands as a testament to the company’s commitment to delivering high-quality audio solutions that exceed expectations.

In essence, the JL Audio F212 is not just a subwoofer; it’s a statement of quality and performance. Its robust build, innovative technology, and impressive sound output make it a top choice for serious music lovers and home theater enthusiasts seeking to elevate their auditory experience. Whether you’re deep into a cinematic experience or enjoying your favorite music, the F212 is sure to deliver the thunderous bass and clarity that will leave a lasting impression.
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