The Paradigm Defiance X series are ported, DSP-controlled subwoofers built for serious low-frequency performance in music and home theatre. Available in 10", 12" and 15" driver sizes, each model pairs Paradigm’s patented ART™ surround and a Class-D amplifier with a high-velocity, low-turbulence port and on-board Anthem Room Correction (ARC®) — plus a phone app for tuning from your seat. They deliver deep extension, tight control and very low distortion while remaining easy to set up and tune for your room. Choose the X10, X12 or X15 to match your room size and required output.
Key Features
- Patented Active Ridge Technology (ART™) surrounds — increased excursion with lower audible distortion.
- On-board Anthem Room Correction (ARC®) — calibrated mic included for the Defiance X models for precise room tuning.
- App control for volume, low-pass, phase and presets — quick setup and fine tuning from your smartphone.
- High-velocity, low-turbulence ported cabinet design for strong output and controlled bass extension.
- Class-D amplifier with auto on/off and soft-clipping circuitry for clean, powerful peaks.
- Flexible inputs — X15 adds balanced XLR plus speaker-level and multiple RCAs; X12/X10 include RCA, speaker-level and USB for ARC/firmware.
- Three model sizes to suit different rooms: 10" (compact), 12" (mid), 15" (maximum output).
Why Buy
If you want bass that delivers both impact and control, the Defiance X series gives measurable extension and low distortion without gimmicks. Each model arrives ready for practical setup (ARC® + app), so you spend less time fiddling and more time listening. Built in Canada with heavy bracing and attention to driver excursion, these subwoofers suit serious listeners who want reliable, repeatable low-frequency performance.
- Precise, science-backed tuning (Anthem Room Correction included) for balanced, accurate bass in real rooms.
- Proven driver design (ART™) and robust cabinet engineering for high output with low distortion.
- Model options and convenient app control let you match performance to room size and system demands.
Product Specifications
| General Information | |
|---|---|
| Product Name | Paradigm Defiance X10 / X12 / X15 |
| Brand | Paradigm |
| Model Number | X10, X12, X15 |
| Series | Defiance X (Ported Subwoofers) |
| Speaker Type | Powered Subwoofer (Ported, DSP-controlled) |
| Recommended Use | Home Theater, Stereo / Music Listening |
| Placement | Floor / near wall (ported design) |
| Number of Speakers | 1 (sold individually) |
| Country of Origin | Designed & engineered in Canada |
| Audio | |
| Frequency Response (±3 dB) |
X10: 29 – 240 Hz X12: 20 – 230 Hz X15: 18 – 240 Hz |
| Low Frequency Extension (DIN) |
X10: 24 Hz X12: 15 Hz X15: 14 Hz |
| Amplifier (RMS / Peak) |
X10: 300 W RMS / 600 W peak X12: 650 W RMS / 1,300 W peak X15: 900 W RMS / 1,800 W peak |
| Driver |
X10: 10" ART™ surround X12: 12" ART™ surround X15: 15" ART™ surround |
| Enclosure Type | Ported (High-velocity, low-turbulence port) |
| Room Correction | Anthem Room Correction (ARC®) included |
| Connectivity | |
| Line-Level / LFE Inputs | RCA / LFE — mono or stereo capable |
| Speaker-Level Inputs | Yes (Left & Right) |
| Balanced Input | Only on X15 (XLR LFE) |
| USB / ARC Interface | USB port for ARC calibration / firmware update (X10, X12) / App control via Bluetooth |
| Auto On / Off | Yes |
| Features | |
| Surround Type | Active Ridge Technology (ART™) |
| App Control | Yes (iOS / Android via Bluetooth) |
| Soft Clipping / Protection | Integrated DSP soft clipping to reduce overload distortion |
| Preset Memory | User presets saved via app or on device |
| Cabinet & Bracing | Heavily braced MDF, acoustic design for port airflow |
| Finish | Satin Black |
| Wireless Option | Compatible with Defiance WT wireless kit (sold separately) |
| Physical Specifications | |
| Dimensions (H × W × D, includes grille) |
X10: 16-7/16" × 15" × 16-7/16" X12: 19-7/16" × 18" × 19-7/16" X15: 24-5/8" × 23-3/16" × 24-5/8" |
| Weight |
X10: 42 lb (19.1 kg) X12: 62 lb (28.1 kg) X15: 92 lb (41.7 kg) |
| Grille Type | Cloth grille (removable) |
| In the Box | |
| Included Items | Subwoofer unit (X10, X12, or X15) + Cloth grille + Calibration microphone + Power cord + Owner’s manual + Warranty information |
| Warranty | |
| Warranty Period | 3 years (parts & labor) |
| Customer Support Info | Contact Paradigm support via their official website |