JL Audio Fathom IWS-SYS-1 13.5-inch In-Wall Powered Subwoofer System

JL Audio Fathom IWS-SYS-1 13.5-inch In-Wall Powered Subwoofer System

Your Price: $4,500.00
Or email: info@crowneaudio.com for more information.
Part Number:IWS-SYS-1

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Fathom® IWS-SYS-1

In-Wall Subwoofer System with Single 13.5-inch Subwoofer Driver, 1000 watts

The same minds that engineered JL Audio's reference-grade Fathom® and Gotham® powered subwoofers have created an amazing in-wall subwoofer solution, centered on a purpose-engineered, thin-line driver with patented technology.

Housing this exotic driver is a critically engineered enclosure with a unique floating mount design to minimize wall excitation. The enclosure features extensive architectural features aimed at improving rigidity while keeping a very low profile and minimal wall thickness.

A paintable, fine steel-mesh grille, also designed to control vibration, is included for each enclosure in a system.

The IWS System One is driven by a rack-mountable, purpose-tuned amplifier, capable of delivering up to 1 kW of clean power, and armed with serious processing features, including our acclaimed Automatic Room Optimization system.

There is no need to lower your expectations when selecting this remarkable in-wall solution... it's a real Fathom®.

The IWS System One is available to fit a variety of 2" x 4" and 2" x 6" wall studs. Consult your Authorized JL Audio Dealer for specific application information.

Enclosure Finish: Flat Black (hidden from view when installed)

Grille finish: Primer White (paintable)

Enclosure Construction: CNC-Cut Birch Plywood

Automatic Room Optimization

Automatic Room Optimization (A.R.O)

Summary:
JL Audio's exclusive A.R.O. technology is designed to easily and automatically optimize a subwoofer's in-room response. Taking just a few minutes to accomplish, this innovative feature delivers a superb low-frequency listening experience, no matter where the subwoofer is placed.

Detailed Information:
A wise man named Murphy long ago prescribed that a subwoofer will generally sound best in the most impractical spot in the room... a fact that home theater professionals wrestle with constantly. Subwoofer placement almost always involves a compromise between sonic performance, practicality and aesthetics.

To face this dilemma head on, JL Audio subwoofer systems incorporate a clever piece of technology called Automatic Room Optimization (A.R.O.).

The A.R.O. system self-generates a series of calibration tones, measures the response at the listening position, analyzes the shape and magnitude of the primary response error and configures an appropriate filter to tame it.  The system effectively allows for smooth, well-balanced sub-bass from a variety of locations that may have been less than ideal without A.R.O.

To accomplish this complex feat, all you have to do is:

  1. Connect the included calibration microphone to the front panel of the subwoofer.
  2. Press the calibrate button on the front panel of the subwoofer system.
  3. Hold the microphone at the primary listening position.
  4. A few minutes later, you have completed this one-time setup routine.
You won't need a computer, spreadsheets or expensive equipment and you don't need to navigate and manipulate complex interfaces... a fine example of technology in the service of man, if there ever was one.


DMA Optimized

Dynamic Motor Analysis - DMA Optimized Motor

Summary:
JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.

Detailed Information:
Since 1997, JL Audio has been at the forefront of Finite Element Analysis-based modeling of loudspeaker motors and suspensions. This research is aimed at decoding what we refer to as the "Loudspeaker Genome"... a project aimed at understanding the true behavior of loudspeakers under power and in motion. A major component of this integrated system is DMA (Dynamic Motor Analysis). Starting with the 15W3 and the W7 Subwoofers in the late 1990's and early 2000's, DMA has played an important role in the design of all JL Audio woofers sold today, including our component woofers.

DMA is a Finite Element Analysis (FEA)-based system, meaning that it takes a large, complex problem, breaks it down into small solution elements for analysis and then assembles the data to form an accurate, "big-picture" solution. DMA's breakthrough is that it actually considers the effects of power through the coil as well as coil/cone position within the framework of a time-domain analysis. This gives us a highly accurate model of a speaker's actual behavior under real power, something that the traditional Thiele-Small models or other low power measurements cannot do. Because DMA does not rely on a steady-state model, it is able to consider shifts in the circuit elements being analyzed. These modeling routines are intense, requiring hours to run for a whole speaker.

DMA is able to analyze the real effects of fluctuating power and excursion upon the magnetic circuit of the motor, specifically the dynamic variations of the "fixed" magnetic field. This delivers intensely valuable information compared to traditional modeling, which assumes that the "fixed" field produced in the air gap by the magnet and the motor plates is unchanging. DMA not only shows that this "fixed" field changes in reaction to the magnetic field created by current flowing through the voice coil, but it helps our engineers arrive at motor solutions that minimize this instability. Analyzing this behavior is critical to understanding the distortion mechanisms of a speaker motor and sheds light on the aspects of motor design that determine truly linear behavior:

  1. Linear motor force over the speaker's operational excursion range
  2. Consistent motor force with both positive and negative current through the coil
  3. Consistent motor force at varying applied power levels
     

Our ability to fully analyze these aspects of motor behavior allows our transducer engineers to make critical adjustments to motor designs that result in extremely linear, highly stable dynamic loudspeaker motor systems.

The payoff is reduced distortion, improved transient performance and stellar sound quality.


FCAM

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

Summary:
This assembly technique, conceived by JL Audio, ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.

Detailed Information:
JL Audio's patented FCAM™ technology is an innovative method of bonding the surround/cone assembly to the voice coil former/spider assembly. This feature helps ensure concentricity of the surround, spider and voice coil without torquing the suspension to achieve it. This allows for the inevitable, slight variations in production part dimensions without having them negatively impact the integrity of the suspension and coil-centering at high excursions.


Concentric Tube Suspension

Concentric Tube Suspension (U.S. Patent #5,734,132 & #6,095,280)

Summary:
Our patented Concentric Tube Suspension™ technology delivers unprecedented excursion in a low-profile woofer.

Detailed Information:
The biggest challenge in any low-profile woofer design is to create enough mechanical clearance for the speaker to generate enough excursion to meet its output and low-frequency extension goals. Since these goals were very ambitious in the development of JL Audio's low profile woofers, achieving them required development of a new suspension architecture.

JL Audio's patented solution employs a molded structure which spans over the edge of the motor system, supporting the spider on the outside of the motor's boundaries and the large diameter voice coil on the inside. The large diameter voice coil permits the magnet to sit inside it, rather than surrounding the coil as is typical in most woofers.

TW5 Membrane

The concentric tube structure and the elimination of a conventional top-plate helps us place the motor system higher up into the cone body's space to further compress depth, while still permitting excellent mechanical excursion.


High-Damping Feedback Circuitry

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

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

Detailed Information:
While Class D amplifiers are well known for outstanding efficiency, they have also been known for less than spectacular sound quality due to weak damping of the driven load and poor power regulation. These factors are critical to subwoofer fidelity as they relate directly to the amplifier's ability to control the motion of the speakers.

JL Audio's Patented Class D output circuit utilizes a discrete control section and a unique feedback loop design that results in outstanding power regulation with a damping factor that's vastly higher than other Class D designs and also higher than most Class A/B amplifiers. The benefit of this exclusive JL Audio technology is tight, clean bass reproduction with the efficiency advantage of Class D.

It is a package tailor-made for world-class bass performance.


Precision Built in U.S.A.

Precision Built in U.S.A.


 

 

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