In today’s Hi-Fi and home theater world, bass is more than just low-frequency sound — it’s the element that gives music weight, movies impact, and games a sense of realism. Without a capable subwoofer, even the most detailed speakers can feel incomplete. That’s where the Fosi Audio SW10 active subwoofer steps in, offering deep, powerful, and controlled bass in a sleek, compact form factor.
Compact Size, Room-Filling Bass
At first glance, the SW10 looks minimalist and understated, but inside lies a serious powerhouse. Built with a 10-inch high-excursion polypropylene diaphragm woofer, the SW10 delivers tight, layered bass response that enhances your listening experience without muddying vocals or masking treble detail. Unlike oversized subwoofers that dominate your space, the SW10 is compact enough to slide under a desk or tuck neatly in a living room corner — yet it easily fills the room with chest-thumping impact.
The down-firing design uses the floor surface as a natural reflector, dispersing bass evenly and reducing unwanted resonance. Combined with rear dual bass ports, airflow is smoother, distortion is reduced, and the subwoofer achieves greater low-frequency extension with authority.
500W Digital Amplification: Power with Precision
A subwoofer is only as good as the amplifier that drives it. The SW10 features a 500W Class-D digital amplifier, engineered to provide high efficiency, low heat output, and consistent performance. This ensures that even during dynamic peaks — like an action-movie explosion or the drop in an EDM track — the SW10 maintains clarity and precision.
Where many budget subwoofers sacrifice control for raw output, the SW10 strikes a careful balance: punchy and powerful bass that remains clean and detailed, even at higher listening volumes.
Cinema-Grade Immersion at Home
Pair the SW10 with Fosi Audio amplifiers and speakers, and you unlock a cinema-grade soundstage right in your living room. Explosions gain physical presence, kick drums sound visceral, and orchestral scores feel enveloping. Whether you’re watching blockbuster films, playing immersive games, or enjoying high-resolution music, the SW10 doesn’t just reproduce bass — it makes you feel it.
Smart Design for Seamless Integration
Setting up the SW10 is effortless thanks to its comprehensive connectivity and controls. The rear panel includes:
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RCA Line Inputs/Outputs for easy connection to a wide range of systems.
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Dedicated Subwoofer Input for LFE integration in home theater setups.
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Crossover, phase, and volume controls for precise adjustment to your room and system.
An auto-power switch adds convenience and efficiency. The SW10 automatically turns on when it detects an incoming signal and switches off when idle, reducing power consumption without requiring user intervention.
Built to Last, Designed to Blend In
A subwoofer should feel solid — and the SW10 delivers. The cabinet is crafted from MDF (Medium Density Fiberboard) with a durable PVC finish. At around 14 kg (30 lbs), its mass helps to minimize cabinet resonance and vibrations, ensuring clean bass output. Despite its robust build, the design is Nordic-inspired minimalist, with a hidden driver and rear-mounted controls that keep the front and sides clean. The result is a subwoofer that looks elegant in modern interiors while performing like a heavyweight.
Inside the SW10
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Driver Unit: 10" high-excursion polypropylene diaphragm woofer
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Amplifier Power: 500W Class-D digital amplifier (peak output)
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Frequency Response: 30Hz – 120Hz (adjustable with crossover control)
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Cabinet Material: MDF (Medium Density Fiberboard) with PVC finish
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Cabinet Weight: ~14 kg (30 lbs), designed to minimize resonance and vibration
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Design: Down-firing woofer with rear dual bass ports for extended low-end and smoother airflow
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Inputs: RCA Line In / Subwoofer In (LFE)
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Outputs: RCA Line Out
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Controls: Adjustable crossover, phase switch, and volume control on rear panel
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Auto Power Function: Automatic ON/OFF with signal detection for energy efficiency
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Dimensions: Compact footprint, suitable for under-desk or living room placement
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Finish & Aesthetics: Nordic-inspired minimalist design, hidden driver, rear-mounted controls for a clean look
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