JL Audio IWS-SYS-2, IWS-SYS-1 owner manual Table of Contents, Introduction

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FCC Compliance Statement

NOTE: This equipment has been tested and found to comply with the limits of Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help. 

TABLE OF CONTENTS

Important Safety Instructions: . . . . . . . . . . . . . . . . . . . . . 2-3

Introduction:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Product Overview:

5

Placing your Fathom IWS in Your Listening Room:. .

. . . . . . . . . . 6-10

Front Control Panel Layout:

.11

Rear Control and Connector Panel Layout: . . . . . . . . . . . . . . . . .11

Front Panel Controls in Detail:. . . . . . . . . . . . . . . . . . . . .12-15

Connecting your Fathom IWS(s):. . . . . . . . . . . . . . . . . . . .16-23

Recommended Setup Procedure: . . . . . . . . . . . . . . . . . . . .24-28

Frequently Asked Questions:. . . . . . . . . . . . . . . . . . . . . . . 29

Troubleshooting: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Limited Warranty / Service Information:. . . . . . . . . . . . . . . . . .31 Specifications:.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INTRODUCTION

Congratulations on your purchase of a JL Audio Fathom powered subwoofer system. This product has been critically engineered to deliver exceptional performance in your home theater or audio system for many years to come.

As a company, we are intensely committed to core research into high-performance loudspeaker and amplifier technologies. JL Audio’s long excursion subwoofer driver designs are widely considered as reference standards for linear behavior and high output. We have also focused our efforts to create powerful amplifier and signal-processing technologies specifically aimed at delivering exceptional low-frequency performance. Your Fathom combines these core disciplines within a compact, beautifully crafted package to deliver an unparalleled listening experience.

We sincerely thank you for your purchase and invite you to read this manual thoroughly in order to achieve the highest level of performance with your Fathom IWS subwoofer system. Enjoy.

JL AUDIO TECHNOLOGIES INCLUDED IN Fathom IWS SUBWOOFERS

DMA-Optimized Motor System

DMA is JL Audio’s proprietary Dynamic Motor Analysis system aimed at improving dynamic motor behavior. As a result of DMA optimization, loudspeaker motors remain linear in force over an extreme range of excursion and also maintain a highly stable fixed magnetic field over a wide power range. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.

Concentric Tube Suspension

(U.S. Patent #5,734,132 & #6,095,280) The suspension technology of the Fathom IWS driver permits high linear excursions within a very shallow frame design.

Floating-Cone™ Attach Method (U.S. Patent #6,501,844)

This assembly technique ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.

Plateau-Reinforced Spider Attachment (U.S. Patent #6,118,884)

This high-integrity suspension attachment relieves stress from the spider material at high-excursions for enhanced reliability.

High-Damping Feedback Circuit (U.S. Patent #6,441,685)

This proprietary, discrete control circuit design allows our Class D switching amplifiers to maintain an excellent damping factor for improved transient behavior and fidelity.

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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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