JL Audio IWS-SYS-2 Front Panel Controls in Detail, Power Switch, Power switch has three positions

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FRONT PANEL CONTROLS IN DETAIL

Power Switch

The “Power” switch determines the operational readiness of the Fathom IWS system and should be the only switch used to turn the Fathom IWS amp 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 IWS’s AC power cord while the unit is turned on.

The power switch has three positions:

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

“Off ”: The Fathom IWS’s 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 IWS amp will power up 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 IWS will draw a very small amount of current (< 10 watts) to power its signal-sensing circuitry. Front panel lights will turn off when the Fathom IWS powers down and light when the Fathom IWS 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 IWS. 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 IWS 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 IWS 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 IWS 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 IWS 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.

IMPORTANT

PROCESSOR (BALANCED OUTPUTS)

RECEIVER / PROCESSOR (UNBALANCED OUTPUTS)

PRE OUT

FRONT L REAR CENTER

OUTPUTS

OR

FRONT R REAR SUB

FATHOM REAR CONTROLS (MASTER)

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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 FreqPhase F. TrimPolarity Balanced Inputs Technical NotesUnbalanced Inputs RCA-type connection Tip PositiveInput Mode Switches Grounded / Isolated SwitchMaster / Slave Switch Output to Slave Connector Output to Slave connector is designed to be used as followsIEC-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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