Power & Performance

• Design: 15-inch driver, high-velocity low-turbulence ported design, down-firing port
• Amplifier: 1,800 Watts Dynamic Peak / 900 Watts RMS
• Amplifier Features: High-current, discrete output; Class-D™ design; Auto-On/Off; improved soft-clipping circuitry
• Frequency Response (On-Axis): +/- 3 dB from 18 Hz – 240 Hz
• Sensitivity (Room / Anechoic): 100mV mono (max volume)
• Impedance: RCA: 10k Ohms
• Low Frequency Extension: 14 Hz (DIN)
• Performance: The Paradigm Defiance X15 is the undisputed heavyweight champion of the Defiance series. This "whopper" of a subwoofer is a nearly 2-foot cube designed for one purpose: total acoustic dominance. With a massive 900W RMS power plant and a subterranean 14 Hz extension, it provides a physical, tangible bass experience that you feel through your entire body. It is the definitive choice for the ultimate dedicated home theater, capable of pressurizing even the largest open-concept great rooms with ease. Crafted in Canada, the X15 delivers massive SPL levels while maintaining the surgical precision and low distortion required for high-fidelity musicality.

Audio Features & Drivers

• 15-inch Carbon-Loaded Polypropylene Cone with ART™: Features a 381mm high-displacement driver. The carbon-loaded cone provides the extreme structural integrity needed to move massive columns of air, while the patented Active Ridge Technology (ART™) overmolded surround allows for the farthest possible linear throw without distortion.
• Anthem Room Correction (ARC®) Included: Ships with a professional-grade calibrated microphone and stand. ARC® uses proprietary DSP algorithms to measure your room's unique acoustic signature and remove performance-robbing anomalies, ensuring the X15’s massive output remains tight, accurate, and perfectly blended.
• Paradigm Subwoofer Control App: Provides total control from your listening chair via Bluetooth. Adjust volume, phase, and the low-pass filter, or initiate a "Tone Sweep" (20–120Hz) to help identify and eliminate troublesome rattles or resonances in your room.
• High-Velocity Low-Turbulence Down-Firing Port: The oversized, mathematically tuned port maximizes low-frequency efficiency. By firing downward against the floor, it increases room coupling for a more visceral "slam" while eliminating the audible air turbulence (chuffing) common in lesser big-bore subwoofers.
• Heavy-Duty Internally Braced Cabinet: To contain the energy of an 1800W peak, the X15 utilizes an ultra-thick, reinforced enclosure with extensive internal bracing, ensuring the cabinet remains non-resonant even during the most violent cinematic transients.

Streaming & Connectivity

• Balanced XLR (LFE) Input: Unique to the X15 in this series, it features a professional Balanced XLR input for noise-free signal transmission over long cable runs in high-end theater installations.
• Triple RCA (Left/Right/LFE) Inputs: Offers a full suite of line-level inputs for stereo pre-amps or standard AV receivers.
• Speaker-Level Inputs: Includes high-quality binding posts for integration into specialized 2-channel systems that lack a dedicated subwoofer output.
• Wireless-Ready (Defiance WT Kit): Compatible with the optional Defiance WT Wireless Kit (sold separately), allowing for 2.4 GHz lossless signal transmission up to 50 feet away for cable-free placement.
• USB Programming Port: Used for connecting the included ARC® microphone and for future firmware updates to keep the internal 64-bit DSP current.

Comfort & Dimensions

• "Crafted in Canada" Excellence: Fully designed, engineered, and manufactured at Paradigm’s state-of-the-art facility in Ontario, ensuring North American build quality and meticulous quality control.
• Interchangeable Feet: Ships with heavy-duty rubber feet for hard surfaces and stainless steel carpet spikes to ensure the 92-pound cabinet remains rock-steady on any flooring.
• Overall Dimensions (Includes Grille & Feet): 24.625" (62.6cm) Height x 23.1875" (59cm) Width x 24.625" (62.6cm) Depth.
• Unit Weight: 92 lbs (41.7 kg) — A true "heavyweight" reflecting the massive magnet structure and industrial-grade cabinetry.
• Satin Black Finish: Dressed in a premium, non-reflective Satin Black finish with a matching cloth grille, tailored for high-end dedicated cinema environments.

Design & Build

• 900W RMS / 1800W Peak Class-D™ Amplifier: This ultra-efficient power plant provides the massive current reserves needed for 115dB+ peaks while maintaining "cool-running" reliability.
• Advanced Soft-Clipping Circuitry: Monitors the signal in real-time to prevent the amplifier from clipping, protecting the 15-inch ART™ driver and ensuring clean, articulate output even at the very limits of its performance.
• Continuously Variable Phase (0° - 180°): Allows you to perfectly sync the timing of the X15 with your main speakers in increments of 1 degree via the app.
• Three Preset Listening Modes: Features specialized DSP profiles for Music (flat response), Movie (enhanced low-end impact), and Night (compressed dynamics for late-night viewing).
• High-Temperature Voice Coil: Built with a multi-layer coil and high-excursion suspension to handle the extreme thermal and mechanical loads of high-SPL operation.

Paradigm speakers are warranted to be and remain free of manufacturing and/or material defects for a period of outlined below from the date of original purchase. Within the time period specified, repair, replacement or adjustment of parts for manufacturing and/or material defects will be free of charge to the original owner. Thermal or mechanical abuse/misuse is not covered under warranty.

The warranty period on Paradigm speakers is as follows:

• Bookshelf, floorstanding, in-wall & in-ceiling speakers — five (5) years
• Powered Subwoofers — three (3) years
• Outdoor Rock speakers — five (5) years
• Stylus Outdoor speakers — two (2) years
• Powered Speakers — one (1) year
• SHIFT Series products — one (1) year

Warranty begins on date of purchase from Paradigm or an Authorized Paradigm Dealer.

This warranty applies only to purchases made from authorized Paradigm dealers in Canada and the United States. For warranty terms, conditions and support elsewhere, please contact the authorized Paradigm distributor in the country where you made your purchase. Warranty outside Canada and the US is established and provided by our authorized distributors around the world.

Limitations:

• Warranty begins on date of original retail purchase from an Authorized Paradigm® Dealer only. It is not transferable;
• Warranty applies to product in normal home use only. If product is subjected to any of the conditions outlined in the next section, warranty is void;
• Warranty does not apply if the product is used in professional or commercial applications.

Warranty is Void if:

• The product has been abused (intentionally or accidentally);
• The product has been used in conjunction with unsuitable or faulty equipment;
• The product has been subjected to damaging signals, derangement in transport, mechanical damage or any abnormal conditions;
• The product (including cabinet) has been tampered with or damaged by an unauthorized service facility;
• The serial number has been removed or defaced.

Owner Responsibilities:

• Provide normal/reasonable operating care and maintenance;
• Provide or pay for transportation charges for product to service facility;
• Provide proof of purchase (your sales receipt given at time of purchase from your Authorized Paradigm® Dealer must be retained for proof-of purchase date).

Should servicing be required, contact your nearest Authorized Paradigm® Dealer, Paradigm Electronics Inc. or Import Distributor (outside the U.S. and Canada) to arrange, bring in or ship prepaid, any defective unit. Paradigm Electronics Inc. reserves the right to improve the design of any product without assuming any obligation to modify any product previously manufactured. This warranty is in lieu of all other warranties expressed or implied, of merchantability, fitness for any particular purpose and may not be extended or enlarged by anyone. In no event shall Paradigm Electronics Inc., their agents or representatives be responsible for any incidental or consequential damages. Some jurisdictions do not allow limitation of incidental or consequential damages, so this exclusion may not apply to you.

Retain your sales receipt for proof of warranty term and proof of purchase.