JL Audio IWS-SYS-2, IWS-SYS-1 Polarity and Phase Adjustment, Extreme Low Frequency e.l.f. Trim

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3) 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.”

4) Extreme Low Frequency (e.l.f.) Trim

Use the “e.l.f. trim” control to adjust the extreme low bass extension of the Fathom IWS. This control allows -12 dB of cut or +3 dB of boost at 28 Hertz and is particularly useful when using a Fathom IWS (or two) in a small to medium sized home theater. Since smaller enclosed spaces help to boost the level of the lowest bass frequencies, smaller theaters can be overwhelmed by the strong low-bass output of the Fathom IWS subwoofer. This can create a “thick” or “bloated” character in the lower bass region. Turning down the “e.l.f. trim” knob cuts the extreme low bass level and alleviates this condition. 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 IWS is now optimized for maximum bass performance at your listening seat. Congratulations!

IMPORTANT! WRITE DOWN ALL SETTINGS PERFORMED IN STEPS 2-4 FOR FUTURE REFERENCE.

IMPORTANT! IF YOU MOVE YOUR PRIMARY LISTENING SEAT IN THE FUTURE, YOU WILL NEED TO RUN A.R.O. AGAIN. ANY PARTICULAR CALIBRATION IS UNIQUE TO THAT PARTICULAR SUBWOOFER POSITION AND LISTENING SEAT POSITION COMBINATION. SIMPLY FOLLOW THE STEPS ABOVE TO CREATE A NEW CALIBRATION CURVE.

IMPORTANT

IMPORTANT

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Fathom IWS

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Contents IWS-SYS-1 IWS-SYS-2 Important Safety Instructions Risk of Electric Shock Do not OpenFathom IWS Table of Contents IntroductionProduct Overview Placing Your Fathom IWS Cabinets in Your Listening Room Best Seating Positions Most accurate bass performanceRack Ears End Covers Using Two Fathom IWS Enclosures Recommended Subwoofer Placement Options for Four Fathom IWSs Rear Controls and Connectors Front Control PanelPower Switch Power switch has three positionsFront Panel Controls in Detail Automatic Room Optimization A.R.OInput Mode Indicators Level ModeDemo Button Defeat ButtonMaster Level Knob LightsLP Filter LP FreqF. Trim PhasePolarity Balanced Inputs Technical NotesUnbalanced Inputs RCA-type connection Tip PositiveGrounded / Isolated Switch Input Mode SwitchesMaster / Slave Switch Output to Slave connector is designed to be used as follows Output to Slave ConnectorIEC-Style AC Connector Fathom Rear Controls Master Fathom Rear Controls Master Fathom Rear Controls Slave Stereo Active Crossover Balanced Outputs Fathom IWS Recommended Setup Procedures Preparation for Setup ProcessOn your Home Theater Receiver or Preamp/Processor On your Active Crossover or Bass Management ProcessorOn the Fathom IWS’s Front Panel Recommended Setup Procedures Subwoofer System SetupFathom IWS Polarity and Phase Adjustment Extreme Low Frequency e.l.f. TrimFrequently Asked Questions Is the Fathom IWS magnetically shielded?Troubleshooting Limited Warranty / Service Information If you need service on your JL Audio productFor Service Information in the U.S.A. please call International WarrantiesFeatures

IWS-SYS-1, IWS-SYS-2 specifications

JL Audio has made a significant mark in the audio industry with its innovative products, particularly in the realm of marine and automotive sound systems. Among their diverse range of offerings, the IWS-SYS-2 and IWS-SYS-1 stand out as exceptional choices for esteemed audio enthusiasts seeking quality audio performance in unique environments.

The IWS-SYS-2 is engineered for those who demand powerful sound without sacrificing design. It features dual 8-inch subwoofers with a carefully crafted enclosure that effectively enhances low-frequency response. The system is built using robust materials that ensure durability and longevity, especially in marine applications where moisture and salt can wreak havoc on less-prominent audio equipment.

One of the hallmarks of the IWS-SYS-2 is its innovative media technology enhancement. This system employs JL Audio's proprietary, advanced signal processing that optimizes audio performance by ensuring crisp highs and thunderous lows, while minimizing distortion even at peak volume levels. Furthermore, the system includes customizable settings to accommodate various listening environments, making it an adaptable choice for diverse applications.

On the other hand, the IWS-SYS-1 focuses on providing a simpler, yet equally impressive audio experience. It features a single 8-inch subwoofer that delivers rich bass response and clarity. This system is ideal for those who want to introduce high-quality audio to smaller spaces without overwhelming them with subwoofer power. The IWS-SYS-1 also boasts a user-friendly installation process that makes it accessible for both professionals and DIY enthusiasts alike.

Both models are designed with marine-grade components, providing resistance against corrosion and environmental challenges that are common in boating and harsh weather conditions. The weather-resistant finish and UV-protected materials ensure that aesthetics remain intact without compromising sound quality.

Overall, the JL Audio IWS-SYS-2 and IWS-SYS-1 are impressive entries in the realm of marine audio solutions. With their respective strengths in sound performance, design, and resilience, these systems exemplify JL Audio's commitment to delivering exceptional audio experiences. Whether you opt for the robust full-power capabilities of the IWS-SYS-2 or the streamlined elegance of the IWS-SYS-1, both systems promise to elevate your sonic adventures to new heights.
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