JL Audio IWS-SYS-1, IWS-SYS-2 owner manual Product Overview

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IMPORTANT

PRODUCT OVERVIEW

JL Audio Fathom IWS subwoofers combine a state-of-the-art

JL Audio subwoofer driver and electronics/amplifier package with a highly optimized enclosure to deliver an exceptional listening experience in your home theater or home audio system.

The subwoofer driver in your Fathom subwoofer system is capable of outstanding linear excursion without distress or audible distortion. This reference-quality driver enables your Fathom to reproduce powerful low frequency events with stunning impact and unprecedented accuracy.

To get the most from this long excursion driver platform, prodigious amounts of controlled power are needed. Our electronics engineering team conducted an intense analysis of typical program material and its dynamic demands in order to balance current draw and actual output power requirements relative to the system’s impedance characteristics. After careful study, a pair of precisely engineered switching amplifiers employing patented feedback technology

were created. These advanced designs are capable of unclipped output voltages equivalent to 1000 watts (System 1) and 2000 watts (System 2) of RMS power when referenced to the nominal loudspeaker impedance, allowing us to take full advantage of each driver’s full excursion envelope.

The beautiful cabinet enclosing the workings of your Fathom is also the result of careful engineering. To contain the pressures created by the Fathom driver, we utilized CNC-cut, cabinet-grade baltic birch plywood with extensive internal bracing features and advanced assembly techniques.

Your listening room is the other enclosure that affects the way your bass will sound. All rooms create a specific sonic signature, which must be effectively managed to achieve well-balanced low frequency performance. To aid in this process, the Fathom includes an extensive set of signal processing tools aimed at optimizing your Fathom’s performance within your listening space. These features include JL Audio’s exclusive Automatic Room Optimization system.

As you can see from this brief introduction, there is a lot of technology in this in-wall subwoofer. The contents of this manual will explain the features, guide you through the setup and tuning of your Fathom subwoofer and help you achieve your ultimate low-frequency listening experience.

If you require assistance, we urge you to contact your authorized JL Audio retailer for expert setup advice and service.

IMPORTANT! IT IS A VERY GOOD IDEA TO READ THE NEXT SECTION BEFORE UNPACKING YOUR FATHOM IWS. UNPACKING THE SUBWOOFER NEAR ITS FINAL LOCATION IS RECOMMENDED.

Fathom IWS

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Contents IWS-SYS-1 IWS-SYS-2 Risk of Electric Shock Do not Open Important Safety InstructionsFathom IWS Introduction Table of ContentsProduct Overview Placing Your Fathom IWS Cabinets in Your Listening Room Most accurate bass performance Best Seating PositionsRack Ears End Covers Using Two Fathom IWS Enclosures Recommended Subwoofer Placement Options for Four Fathom IWSs Front Control Panel Rear Controls and ConnectorsPower switch has three positions Power SwitchFront Panel Controls in Detail Automatic Room Optimization A.R.OLevel Mode Input Mode IndicatorsDemo Button Defeat ButtonLights Master Level KnobLP Filter LP FreqPolarity PhaseF. Trim Technical Notes Balanced InputsRCA-type connection Tip Positive Unbalanced InputsMaster / 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 Fathom Rear Controls Master Fathom Rear Controls Slave Stereo Active Crossover Balanced Outputs Fathom IWS Preparation for Setup Process Recommended Setup ProceduresOn your Home Theater Receiver or Preamp/Processor On your Active Crossover or Bass Management ProcessorOn the Fathom IWS’s Front Panel Subwoofer System Setup Recommended Setup ProceduresFathom IWS Extreme Low Frequency e.l.f. Trim Polarity and Phase AdjustmentIs the Fathom IWS magnetically shielded? Frequently Asked QuestionsTroubleshooting If you need service on your JL Audio product Limited Warranty / Service InformationFor 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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