Audio Pro SW-10 Powered Subwoofer

Audio Pro SW-10 Powered Subwoofer

The Audio Pro SW-10 is a compact powered subwoofer built to add the low-frequency foundation that smaller speakers cannot reproduce on their own. An 8-inch long-throw woofer, driven by a 200-watt digital Class D amplifier with DSP control, works with two 9-inch passive radiators in a sealed cabinet. The result is bass that reaches down to 33 Hz from a cube that measures just 280 mm on each side, making the SW-10 a practical upgrade where floor space is limited but impact matters.

Key features

• 200 W digital Class D amplifier with DSP control built in
• 8-inch long-throw woofer with two 9-inch passive radiators
• Frequency range of 33 Hz to 120 Hz for genuine low-end extension
• Variable crossover from 40 Hz to 120 Hz for smooth blending
• Phase switch with 0 and 180 degree settings
• Single RCA input for connection to a subwoofer or preamp output
• Compact sealed cabinet, 280 x 280 x 295 mm

Driver system and cabinet design

Instead of a conventional port, the SW-10 uses two passive radiators mounted alongside the active woofer. Radiators move air without the turbulence and port noise a vent can produce, and they allow deep tuning from a small sealed enclosure. The long-throw 8-inch driver is designed for controlled excursion, so bass notes start and stop cleanly rather than lingering. The cube-shaped cabinet keeps the footprint small enough to sit beside a media unit, under a desk or in a corner without dominating the room,

Performance in music and film

With extension to 33 Hz, the SW-10 covers the weight of a kick drum, the lower registers of piano and the rumble in film soundtracks that main speakers roll off. Because the amplifier is DSP controlled, output stays composed as levels rise, protecting the driver and keeping distortion in check. In a two-channel system it relieves the main speakers of deep bass duty, which often cleans up the midrange as well. For television and movies, it adds the physical sense of scale that makes effects and scores feel complete, without needing a large ported cabinet.

Setup, controls and placement

Connection is a single RCA cable from a subwoofer output, preamp output or the sub out of compatible powered speakers. Set the crossover where your main speakers begin to roll off, typically between 60 Hz and 100 Hz, then adjust level so the subwoofer supports the sound rather than announcing itself. If bass sounds thin at the listening seat, try the 180 degree phase setting. Placement near a wall adds reinforcement; a corner adds more. Move the cabinet in small steps and re-check the level after each change, because room position shapes the final result as much as the controls do.

Compatibility and ownership

The SW-10 is a wired subwoofer only. It has no Bluetooth or Wi-Fi streaming of its own, so it belongs in a system that already provides a line-level bass signal, such as an AV receiver, a stereo amplifier with preamp outputs, or powered speakers with a subwoofer output. Automatic standby keeps consumption below 0.5 W when idle. For listeners who want deeper, cleaner bass from a genuinely compact cabinet, the SW-10 is a focused and well-judged solution.