The d&b B8-SUB is an ultra-compact subwoofer designed to deliver high-performance low-frequency reinforcement in space-sensitive environments. Developed to integrate seamlessly with the d&b xC, xS, and E-Series loudspeakers, the d&b B8-SUB expands system capabilities by enhancing bass response in both mobile and fixed installation settings. Featuring two 6.5-inch drivers within a bass-reflex enclosure, the d&b B8-SUB provides a frequency range from 43 Hz to 170 Hz, or up to 125 Hz when configured in 100 Hz mode. Its compact dimensions make it particularly well suited to applications where visual discretion and installation flexibility are key, such as corporate venues, hospitality settings, houses of worship, and small performance spaces. The cabinet can be deployed in both horizontal and vertical orientations, offering further versatility. Constructed from marine-grade plywood and finished with a durable black paint coating, the d&b B8-SUB is built for reliability and consistent performance. Connection options include NLT4 F/M connectors, with a dual NL4 M version also available. The inclusion of an M20 threaded flange and M8 rigging points supports a range of mounting and flying configurations. As part of a wider system design, the d&b B8-SUB plays a critical role in delivering balanced audio with improved clarity and low-frequency presence, supporting integrators and sound professionals seeking compact solutions without compromising performance.