Paradigm SFC12-SW enclosure for SFC12-SW subwoofer

Paradigm SFC12-SYS Backbox: The acoustic foundation for uncompromising in-wall bass

The Paradigm SFC12-SYS Backbox is the custom-made, highly engineered enclosure for the SFC12-SYS in-wall subwoofer system. It provides the essential foundation to guarantee absolutely precise, controlled, and reproducible low-frequency reproduction in drywall construction.

As cavities in stud walls vary greatly, this sealed enclosure eliminates any uncertainties caused by the building's architecture. It provides an exactly defined, acoustically tuned volume that is otherwise only offered by high-quality, free-standing high-end speakers. Only through this controlled environment can the subwoofer system, in combination with the Paradigm X-500 or SVX-1202 system amplifiers, unleash its full sonic potential. Please note that this product is exclusively the backbox (the enclosure) and not the amplifier or the drivers themselves.

Your benefits at a glance

• Extruded aluminum enclosure: Made from high-quality extruded aircraft-grade aluminum, the chassis provides exceptional rigidity. This reduces resonances and enclosure vibrations to an absolute minimum.
• Consistent acoustics without compromise: Creates a reliable and repeatable acoustic environment. The bass remains tight, powerful, and precise—without the risk of the sound becoming uncontrolled or boomy within the wall cavity.
• Integrated isolation mounting system: A proprietary, decoupled mounting system effectively prevents vibrational energy from being transferred to the surrounding wall surfaces, the stud frame, or adjacent rooms.
• Perfectly matched system design: Specially developed to work with the Paradigm SVX-1202 amplifiers (for operating two systems) or X-500 (for one system), ensuring maximum performance and operational reliability.
• Future-proof installation (pre-construction): Ideal for new construction projects or major renovations, preparing the later installation of the subwoofer to be seamless, clean, and architecturally perfect.

Technical specifications and dimensions

The backbox is sized to integrate securely and precisely into modern standard wall constructions.

• Overall dimensions (H x W x D): 156.39 cm × 37.23 cm × 9.98 cm (61.57" × 14.66" × 3.93")—dimensions include the subwoofer mount and connections.
• Required minimum installation depth: Very shallow at 8.71 cm (3.43")—optimized for conventional drywall (minimum drywall thickness of 1/2" required for flush grille mounting).
• Weight: Extremely robust total weight of 29.9 kg (66 lbs) for maximum inherent rigidity and absolute vibration control.
• Material & craftsmanship: High-quality extruded aluminum; fully developed, engineered, and precisely manufactured at Paradigm headquarters in Canada (Made in Canada).
• Connections: Nickel-plated, spring-loaded binding posts with enlarged cable guides to accommodate larger cable cross-sections.

Note: This product includes exclusively the Paradigm SFC12-SYS backbox. The matching subwoofer insert and system amplifiers are sold separately.