Powerful, Controlled Performance in a Compact Design
The OSD Black TreVoce 12 PRO is a powered subwoofer designed to deliver serious low-frequency performance without the bulk of oversized enclosures. With 300 watts RMS and 800 watts peak power, it brings together output, control, and efficiency in a way that appeals to both home theater enthusiasts and music lovers alike.
At the core of its design is a triple-driver configuration, a 12-inch active woofer supported by dual 12-inch passive radiators. This hybrid approach enhances bass output while maintaining tight, controlled performance, giving you the impact of larger subwoofers in a more compact footprint.
Power That Stays Controlled
The TreVoce 12 PRO stands out for how well it balances power with precision. The active driver delivers the primary force, while the passive radiators increase output and extend low-frequency response without introducing unwanted noise or distortion.
This results in bass that feels substantial and immersive, yet remains clean and defined. Instead of overwhelming your space, it integrates smoothly into your system allowing your main speakers to focus on mids and highs while the subwoofer handles the low-end with authority.
Smart Tuning for Any Setup
Fine-tuning your system is simple with the TreVoce 12 PRO. Built-in DSP controls, paired with an included remote, allow you to adjust crossover, phase, and output levels with ease.
Whether you’re dialing in settings for a cinematic surround setup or optimizing for music playback, the subwoofer adapts to your environment and preferences without requiring constant manual adjustments.
Efficient Performance, Modern Design
Beyond raw output, the TreVoce 12 PRO is engineered for efficiency. Its Class D amplifier runs cool and consumes less than 0.5 watts in standby, making it a practical choice for everyday use.
The enclosure itself is compact and thoughtfully designed, featuring a leather-grain finish that blends into modern living spaces while minimizing resonance. It’s a subwoofer that performs at a high level without drawing unnecessary attention to itself.

Recognized Performance
The TreVoce 12 PRO hasn’t just impressed on paper it’s earned recognition from the audio community, including being named an AVSForum Top Choice for 2026.
In their evaluation, reviewers highlighted its ability to deliver strong, well-defined bass with excellent control, noting that it avoids the “boomy” or one-note sound common in many subwoofers. It was also praised for maintaining clarity and composure during demanding scenes, where both deep impact and detail are required.
For music, the subwoofer stood out for producing tight, articulate low-end response, preserving detail without smearing or overwhelming the rest of the mix. The overall takeaway: the TreVoce 12 PRO offers an impressive balance of depth, output, and precision, especially considering its size and category.
“For its size, the TreVoce 12 Pro delivers impressive depth and impact.”
Erik Wesley, AVS Forum

Style and Sonic Purity
Gold-plated inputs ensure the highest quality sound transfer, while the reinforced enclosure—finished in synthetic leather—fits seamlessly into any décor. It’s a combination of elegance and performance that audiophiles and design-conscious homeowners will appreciate.
| Audio Performance | |
|---|---|
| Amplifier Type | Class D amplifier |
| Power Output | 300W RMS / 800W peak @ 4Ω |
| Frequency Response | 18Hz–250Hz (-3dB), 15Hz–250Hz (-10dB) |
| Signal-to-Noise Ratio | >95 dB |
| Total Harmonic Distortion | <0.1% |
| Processing | DSP processing with remote control |
| Connectivity & Controls | |
| RCA Connections | RCA inputs/outputs, L/R + LFE |
| XLR Connections | Balanced XLR input, female, and output, male |
| Speaker Inputs | High-level speaker inputs, L/R |
| Crossover | Adjustable, 40Hz–250Hz |
| Phase Control | 0–180° |
| Bass Boost | 0–12dB @ 45Hz |
| Volume Control | Control knob or remote |
| LFE Mode | On / Off |
| Power Mode | Auto / On |
| Remote | Infrared remote included |
| Display & Interface | |
| Display | 3-digit blue LED display |
| Standby Indicator | Red standby indicator |
| Control Interface | Push/turn control knob, VOL, FRE, LFE, MODE, DIS |
| Drivers & Build | |
| Active Woofer | 12″ active woofer |
| Passive Radiators | Dual 12″ passive radiators |
| Cabinet | PVC cabinet with leather-grain finish |
| Amplifier Panel | Aluminum amplifier panel |
| Grille | Cloth grille, active driver |
| Product Size | 16.75″ × 16.75″ × 17.75″ |
| Power & Efficiency | |
| Voltage | 100–120V / 220–240V |
| Power Supply | SMPS power supply |
| Standby Power Consumption | <0.5W |
| Built-In Protection | Short circuit, thermal, overload, DC |
The OSD Black TreVoce 12 PRO proves that impactful bass doesn’t require an oversized cabinet or overly complex setup. Its triple-driver design, powerful amplification, and flexible tuning make it a versatile solution for a wide range of systems.
The Trevoce 12 PRO uses a triple-driver design that delivers higher output with lower distortion. This results in deeper, cleaner bass compared to traditional single-driver subwoofers.
It offers deep bass extension down to 18Hz, allowing you to feel true cinematic low-end effects, from explosions to subtle ambient rumble.
Yes. It is engineered for versatility, delivering tight, accurate bass for music and powerful, room-filling impact for movies and gaming.
Absolutely. The built-in DSP and included remote allow you to fine-tune settings like crossover (40–250Hz), phase (0–180°), and bass boost to match your room and listening preferences.
Whether you’re upgrading a home theater or refining a music setup, this subwoofer delivers deep, controlled bass that enhances every listening experience without compromise.