Description
Double Subwoofer Amplifier
The HSWA-302 is purpose-built for home theater enthusiasts and bass lovers who demand dedicated drive for two separate subwoofer enclosures. Delivering 600W Peak Power across its dual discrete Class AB channels, this unit ensures your passive subwoofers produce tight, distortion-free low end down to sub-audible frequencies without straining your primary AV Receiver.
Key Features & Highlights:
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Dedicated Double Subwoofer Output: Drive two passive subwoofers upto 12 inch with individual channel control.
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Dual Independent Subwoofer Tuning: Fine-tune frequency cutoff (Low-Pass Filter) and individual gain controls for seamless room integration and balanced bass distribution.
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Direct Mode Switch (Dual Power Amp Functionality): Flip the Direct Mode switch on the front panel to instantly bypass the internal sub-filter. This transforms the HSWA-302 into a clean, full-range 2-Channel Stereo Power Amplifier to drive main floorstanding speakers or studio monitors.
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High-Current Linear Power Supply: Built with heavy-duty copper transformer power and high-capacity smoothing capacitors to handle violent dynamic bass transients without power compression or thermal sagging.
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Heavy Aluminum Heat Sinks & Steel Chassis: Engineered for silent, continuous high-output operation with passive convection cooling—zero fan noise during quiet movie scenes.
- Active cooling: 3 low noise and efficient cooling fans.
Technical Specifications
| Feature / Parametric Data | Technical Architecture Specs |
| Application Profile | Double Subwoofer Power Engine / Dual-Mono Block Tower Amp |
| Circuit Topology | Premium High-Current MOSFET/BJT Class AB Layout |
| Total Power Capacity | 600 Watts Peak (200W RMS Continuous per channel @ 4 Ohms) |
| Power Transformer Core | Heavy-Duty Industrial Pure Copper Core |
| Thermal Management | Active System: 3 Whisper-Quiet Cooling Fans + Over-Sized CNC Aluminum Heat Sink |
| Dynamic Controls | Master Gain, Sub-Frequency Sweep, Hardware Balance Control Knob |
| Filter Configuration | Toggleable Direct Mode (Bypass LPF for Full Range 10Hz – 20kHz) |
| Speaker Safety Matrix | Intelligent Soft-Start Relay & Stereo DC Protection Circuit |
| Chassis Dimensions / Weight | 37 x 28 x 11 cm | Solid 6.0 Kilograms |
Frequently Asked Questions
Q: Can the HSWA-302 handle two completely different sizes of subwoofers?
A: Yes, absolutely! Thanks to the unique integrated Balance Control Knob, you can run a 12-inch sub on Channel A and a 10-inch sub on Channel B. You can dial down the gain for the smaller enclosure and crank it up for the larger driver to achieve perfect acoustic blending in your room.
Q: How do I hook up the HSWA-302 to an AV Receiver without standard RCA Pre-Outs?
A: Just like its smaller brothers, if your AVR lacks dedicated Pre-Out channels, you can run the speaker-level output wires into a High-to-Low Impedance Converter. 4D Furnishers will ship a high-quality audio converter completely FREE with your order upon request to ensure you can upgrade any system out of the box!
Q: Why does the unit feature active cooling fans?
A: Pushing continuous low-frequency sub-bass into dual massive enclosures generates extensive thermal loads. The HSWA-302 deploys three low-RPM, silent cooling fans alongside a heavy aluminum block heat sink to keep the internal MOSFETs at peak operating safety during long, high-volume sessions.
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