The d&b audiotechnik J-INFRA is a large-format cardioid subwoofer engineered to extend system bandwidth with precision and authority. Using three 21-inch drivers in a cardioid arrangement, it delivers powerful, musical low frequencies while significantly reducing rear radiation, improving onstage clarity and overall system intelligibility. With a maximum SPL of up to 144 dB and a rugged 152 kg build, it is purpose-built for high-demand touring, festival stages and expansive installs where headroom and control are critical.
Seamlessly optimised for use with the d&b J-Series, the J-INFRA supports both ground-stacked and flown configurations, enabling coherent low-frequency arrays that adapt to diverse venue layouts. Its directional dispersion minimises spill into sensitive zones, helping meet strict noise management targets and enhancing audience experience. When driven by compatible d&b system amplifiers, dedicated processing ensures consistent tonal balance, reliable protection and predictable system behaviour across deployments.
From large indoor arenas to outdoor main stages, the J-INFRA underpins modern sound reinforcement with deep, controlled low end and exceptional pattern control—ideal whenever scale, accuracy and repeatability are essential.
Includes
- d&b audiotechnik J-INFRA Cardioid Subwoofer | Stage Experts
STAGE15.4.100.990