Subwoofer Amplifier/Processor with rack mount option and JLink™ Connectivity

Equipped with flexible features and a robust power amplifier section, the Fathom® SA-600W is an ideal choice to drive a custom subwoofer system in home theater and home audio systems. The full set of Fathom® signal processing features is included, along with additional DSP features, managed through an intuitively designed onboard interface. With its precisely engineered switching power supply and proprietary Class-D amplifier topology, the SA-600W is capable of efficiently delivering up to 600 watts of continuous power.

The SA-600W includes the following features:

• Pristine, stereo audio circuit pathways used throughout
• Intuitive interface with LCD display provides detailed control of on-board settings and functions
• On-board, 2-way active crossover (12/24 dB per octave), capable of supporting a stereo system with a low-pass filtered subwoofer output and high-pass filtered line outputs to feed the main speakers’ amplifier
• Built-in, optimized equalizer curves for use with JL Audio subwoofers systems
• Fixed or variable level control options
  
• Selectable polarity control (0 or 180 degrees) to optimize subwoofer integration
  
• Programmable delay controls for the SA-600W’s subwoofer outputs and line outputs.
  
• E.L.F. (Extreme Low Frequency) trim applies equalizer cut or boost at 25 Hz (-12 to + 3 dB) to tailor a subwoofer’s response for a particular room.
  
• D.A.R.O. (Digital Automatic Room Optimization) automatically measures and corrects in-room response to optimize low frequency performance (requires optional JL Audio calibration microphone – CAL-MIC1 – sold separately)
  
• Three band parametric equalizer with configurable center frequency, Q and gain, to further optimize subwoofer system response
  
• Grounded or Isolated input mode options for quiet, noise-free performance
  
• Stereo, high-level inputs accept direct connection from amplified receiver outputs when no line level signal is available.
  
• Wireless signal connectivity is available via the optional JLink™ Transmitter/Receiver system (JLink™ TRX – sold separately).
  
• Automatic turn-on options via signal sensing or 12V trigger. 12V input and output triggers to control additional SA-600Ws or peripheral equipment
  
• Front-mounted USB port and DFU button provides easy access to update firmware.
  
• Versatile mounting options for table-top setups or rack-mount installations.

Digital Automatic Room Optimization (D.A.R.O.)

Summary:
JL Audio's exclusive D.A.R.O. technology uses a powerful on-board DSP to automatically optimize the subwoofer's in-room frequency response. This leads to a superb listening experience, no matter where the subwoofer is placed.

Detailed Information:
In typical listening spaces, subwoofer and listener placement have a profound effect on the accuracy of low-frequency reproduction. While we always recommend that you place your subwoofers in good-sounding locations, we know that these often can be impractical locations. In the real world, 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 Digital Automatic Room Optimization (D.A.R.O.). The D.A.R.O. system self-generates a series of calibration tones, measures the frequency response at the listening position, and automatically configures an 18-band, 1/6 octave equalizer for a flat end-result. The system effectively allows for smooth, well-balanced sub-bass from a variety of locations that would have been less than ideal without D.A.R.O.

To perform this audio magic, 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.
3. Hold the microphone at the primary listening position for about a minute.
4. A few minutes later, you have completed this one-time setup routine.

High-Damping Feedback Circuitry

Summary:
This proprietary, discrete control circuit design allows our Class D switching amplifiers to maintain 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.

Download Fathom® SA-600W Product Manual

USA Limited Warranty:  Three (3) years from the original date of purchaseWarranty Details

Find the answers to many common questions: