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The KEF Ci200TRb is a breakthrough in ultra‑slim architectural bass performance, engineered for installations where space is extremely limited but high‑fidelity sound is non‑negotiable. Featuring a powerful 200mm (8‑inch) subwoofer derived from KEF’s acclaimed T Series ultra‑thin driver technology, the Ci200TRb delivers deep, impactful bass from a form factor that fits where traditional subwoofers simply cannot.

With a mounting depth of less than 59 mm (2⅜ in.), the Ci200TRb is purpose‑built for luxury high‑rise apartments, modern architectural spaces, and premium distributed audio systems where cavity depth is restricted. Despite its slim profile, it produces bass performance that defies expectations, bringing cinematic low‑frequency energy and musical warmth to any room.

In passive mode, the Ci200TRb pairs seamlessly with KEF’s Ci160TR (round) or Ci160TS (square) ultra‑thin speakers, adding rich low‑end extension to music and multi‑room audio systems. When used in active mode with the KEF KASA500 System Amplifier, it transforms into a high‑output architectural subwoofer capable of delivering the dynamic, room‑shaking bass required for today’s immersive home theatres.