OSD Audio



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Supplying up to 800 watts of power for earth-shaking but smooth low frequency sound effects, this 12″ powered stand-alone subwoofer is perfect for any home theater or high-end listening rooms.


  • High-impact triple-12” powered stand-alone subwoofer for home theaters and high-end listening rooms
  • Supplies up to 800W of power for earth-shaking but smooth low frequency sound effects
  • Triple-symmetric woofer design maximizes main woofer performance for high Sound Pressure Level (SPL) without a large footprint
  • Sealed enclosure design ensures fast response and accurate bass sound
  • Incorporates advanced digital amplifier technology for efficiency and power delivery
  • Includes multiple controls to dial in just the right amount of bass balance
  • Highly energy efficient and consumes less than 0.5 Watts in standby
  • 24K Gold-plated inputs for the highest quality sound transfer
  • Speaker and line level inputs to ensure optimal integration with main speakers
  • Faux leather finish blends easily into any decor

OSD Black BK-TreVoce12 is a dynamic powered subwoofer that offers up to 800 Watts of power and a three-woofer design that dramatically enhances bass in home theaters, media rooms and high-end listening spaces. This robust stand-alone subwoofer has a unique configuration that includes a 12” active woofer and two 12” symmetric built passive woofers. The active subwoofer is self-contained and uses the sub’s amplifier to reproduce sound while the two passive symmetric-built woofers enhance the SPL, all contained within a small enclosure. This delicate balance of internal and external power relieves your main speakers from having to produce low frequency sound, allowing them to focus on mid-range and highs. The result is optimal performance, so you’ll experience movie and music soundtracks with prodigious, and tightly controlled, bass authority.

Energy-efficient Amplifier Technology

The TreVoce1 12” powered subwoofer incorporates advanced digital amplifier technology that maximizes performance but, unlike other powered subs that run unnervingly hot, the TreVoce is very efficient and generates very little heat. In standby mode, this powerful sub consumes less than 0.5 Watts, making it one of the most energy-efficient subs on the market.

Dialed-in Performance

The TreVoce12 includes an array of controls to dial in just the right amount of bass for whatever is streaming or playing, whether it’s an action adventure film with friends or listening to some funky slap bass on old vinyls. Equipped with a mounted volume control, low pass crossover, and phase control, this sub allows you to control how the bass integrates with your system and room, and tailors it to your own taste. The TreVoce Series also includes signal sensing, so when auto signal sense is selected, the subwoofer will automatically switch to a power saving stand-by mode. Power will turn on when a signal is detected through the input jacks, saving even more energy.

Style and Sonic Purity

Our TreVoce12 includes gold-plated inputs for the highest quality sound transfer and maximum sonic purity. The reinforced enclosure is not a typical fake wood grain but a synthetic leather that blends easily into any décor.

  • Speaker Type: 12″ Free-Standing Active Subwoofer
  • Active Woofer: 12″
  • Passive Woofer: Dual 12″
  • Frequency Response:  20Hz-160Hz
  • Power Handling: 800 Watts
  • Impedance: 4 Ohms
  • Phase 0-180°
  • Voltage 100-120V AC / 220-240V
  • Inputs Hi Level / Low Level
  • Dimensions (W x H x D) 406mm x 391mm x 381mm