Dedicated 600W Outboard Amplification & DSP Processing | Available at Trimira Audio
The JL Audio Fathom® SA-600W Subwoofer Amplifier is a dedicated external power amplifier and DSP platform designed to drive compatible JL Audio Fathom® architectural and custom-theater subwoofer systems.
Delivering 600 watts of continuous RMS power into 4 ohms, the SA-600W combines high-current Class-D amplification with integrated digital processing and D.A.R.O. (Digital Automatic Room Optimization).
At Trimira Audio, we recommend the SA-600W for custom cinema and architectural subwoofer installations where substantial power, compact rack integration, and automated room optimisation are required.
Key Features & Technological Innovations
High-Current 600W RMS Output
The SA-600W provides 600 W RMS continuous power into 4 ohms, giving compatible passive Fathom architectural subwoofers a dedicated amplification platform.
Its external architecture allows the substantial power supply and amplifier circuitry to remain outside the concealed subwoofer enclosure.
Digital Automatic Room Optimization — D.A.R.O.
The integrated D.A.R.O. system uses a calibration microphone to measure the acoustic response at the listening position and apply DSP equalisation.
This helps compensate for low-frequency response irregularities created by room boundaries, construction, and subwoofer placement.
Comprehensive Onboard DSP
The SA-600W provides digital control over key subwoofer-integration parameters, including:
- Low-pass frequency
- Filter slope
- Phase
- Polarity
- Boundary gain compensation
- Infrasonic filtering
- Output level
These controls allow the subwoofer to be integrated more accurately with the main loudspeakers and cinema processor.
Compact 1U Rack-Mountable Chassis
The 44 mm-high 1U chassis is designed for discreet installation within a standard 19-inch equipment rack.
Its compact form factor is particularly useful for custom theaters where rack space is limited.
Flexible System Integration
The SA-600W provides balanced and unbalanced connectivity, along with system-control facilities for custom installations.
Inputs and outputs include XLR and RCA connections, while 12V trigger functionality allows the amplifier to be integrated with compatible automation and cinema-control systems.
Technical Specifications
| Specification |
Fathom® SA-600W Subwoofer Amplifier |
| Amplifier Type |
Outboard High-Current Class-D Subwoofer Amplifier |
| Power Output |
600 W RMS Continuous into 4 Ω |
| DSP Engine |
Onboard Digital Processing with D.A.R.O. Calibration |
| Frequency Response |
10 Hz–200 Hz (+0, −1 dB) |
| Input Connectors |
Balanced XLR / Unbalanced RCA |
| Output Connectors |
Heavy-Duty Gold-Plated Binding Posts |
| Control & Calibration |
12V Trigger In/Out, USB, Front Microphone Input |
| Chassis Dimensions (H × W × D) |
44 × 483 × 340 mm |
| Form Factor |
1U Rack-Mountable |
| Finish |
Flat Black Anodized Aluminium |
Architectural Subwoofer Integration
The SA-600W is particularly suited to concealed subwoofer installations where the amplifier can be positioned remotely in the equipment rack.
A typical system architecture can be configured as:
AV Processor → SA-600W → Fathom Architectural Subwoofer
This keeps the high-power amplification outside the wall while allowing the subwoofer enclosure to remain concealed behind an acoustically transparent screen, fabric wall, false wall, or custom cinema structure.
For multiple subwoofers, amplifier allocation, placement, phase alignment, and DSP configuration should be considered as part of the overall cinema design.
Consult with the Custom Integration Specialists at Trimira Audio
The JL Audio Fathom SA-600W provides a compact, dedicated amplification and DSP platform for compatible architectural subwoofers.
Trimira Audio can assist with:
- SA-600W and subwoofer matching
- Rack layout
- XLR versus RCA integration
- 12V trigger and automation configuration
- D.A.R.O. room calibration
- Subwoofer placement
- Multi-subwoofer system planning
- Complete architectural cinema integration
Contact the Trimira Audio custom-integration specialists in Brisbane to plan and calibrate a concealed Fathom subwoofer system around the SA-600W.
