The REL Acoustics T/9x is the flagship model of the acclaimed Serie T/x line, designed to deliver fast, musical, and deeply controlled bass that enhances any high-performance stereo or home theater system. Built with REL’s renowned engineering precision, the T/9x pairs a 10-inch long-throw FibreAlloy™ active driver with a matching 10-inch passive radiator in a compact yet powerful force-coupled configuration that dramatically increases output and low-frequency extension without increasing cabinet size. The result is tight, articulate bass capable of reaching down to 27 Hz while maintaining exceptional tonal accuracy and speed—qualities REL is famous for. Powered by a robust 300W Class A/B amplifier, the T/9x offers dynamic headroom and effortless control, allowing it to respond instantly to complex musical passages or cinematic effects. REL’s signature high-level Speakon input allows seamless integration with main speakers, ensuring the subwoofer blends naturally and enhances the entire system rather than simply adding bass. Additional RCA inputs support LFE or low-level connections for versatile setup options. The T/9x’s beautifully sculpted cabinet, finished in high-gloss lacquer, adds elegance to any listening space while optimizing acoustic performance. Optional wireless connectivity via REL Arrow provides placement flexibility without sacrificing sound quality. Combining musical finesse, impactful low-end energy, and meticulous craftsmanship, the REL T/9x is ideal for enthusiasts seeking a subwoofer that elevates their system with refined, immersive bass that feels as precise as it does powerful.