Input Mode Switches:

Two switches are located on the rear panel to control unbalanced signal grounding and master/slave operation.

“Grounded / Isolated” Switch

The “Grounded / Isolated” Input Mode switch affects only the unbalanced RCA inputs and is designed to facilitate a quiet, hum-free connection to your audio or home theater system. This feature is included to deal with the signal grounding issues often encountered in home theater systems when several components from different manufacturers are interconnected.

The Fathom IWS ships with this switch in the “Isolated” mode. If, with all system components connected and turned on (but no source material playing), you hear a continuous low-frequency hum through your Fathom IWS, flip this switch to the “Grounded” position and evaluate the difference in the noise level. Use whichever switch position provides the least hum or noise.

IMPORTANT: PLEASE NOTE

THAT CHANGING ANY COMPONENT IN THE OPTIMIZED SYSTEM (RECEIVER, AMPLIFIER, DVD PLAYER, CABLE OR SATELLITE BOX, ETC.) COULD ALTER THE SIGNAL GROUNDING SCHEME AND CAUSE HUM TO APPEAR IN YOUR PREVIOUSLY QUIET SYSTEM. IF YOU ADD OR CHANGE AN UPSTREAM COMPONENT IN YOUR HOME THEATER SYSTEM, YOU MAY NEED TO REVISIT THIS INPUT MODE SETTING ON THE Fathom IWS SUBWOOFER FOR OPTIMUM NOISE PERFORMANCE. CABLE & SATELLITE BOXES ARE PARTICULARLY TROUBLESOME IN THIS WAY.

Master / Slave Switch

The Fathom IWSs are designed to easily accommodate the implementation of multiple subwoofers in your home theater system through a Master/Slave connection chain. This method allows you to utilize the signal processing features of one Fathom IWS to centrally control multiple Fathom IWSs in the room. Master/Slave functionality also makes it possible for the A.R.O. system to optimize the response of a multiple subwoofer installation.

The Fathom IWS ships with this switch in the “Master” position. If you are using a single Fathom IWS you will use the “Master” position and you need not concern yourself with this section any further.

If your installation incorporates two or more Fathom IWS amplifiers, you will designate one Fathom IWS as the “Master” and all others in the system as “Slave” via the “Master/Slave” switch on the rear amplifier panel of each Fathom IWS.

LED’s on the front panel of the Fathom IWS are provided to indicate whether the “Master” or “Slave” mode is selected for a given subwoofer.

From the Fathom IWS operating in “Master” mode, the “Output to Slave” signal carries any signal processing selected on the Master Fathom IWS (including the Master Level setting and A.R.O. processing) to further Fathom IWSs operating in “Slave” mode. “Slave” subwoofer signal processing and level controls will be inoperable. In this mode, the user does not have to worry about level, crossover, and other settings for the slave subwoofers.

Technical Notes:

•Selecting the “Slave” position defeats all user-definable signal processing and the master level control. Because of this, there are some special situations in which you may want to operate a single Fathom IWS in “Slave” mode. If you are utilizing outboard signal processing and level-matching controls, activating the “Slave” mode will prevent anyone from affecting system parameters with the manual controls on the Fathom IWS.

IMPORTANT

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Fathom IWS

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JL Audio IWS-SYS-2, IWS-SYS-1 owner manual Input Mode Switches, Grounded / Isolated Switch, Master / Slave Switch
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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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