High-end speaker maker Burmester, US introduced a trio of slim speakers at CEDIA. All three speakers – the B30, B25, and B20 – are three-way, full-range, floorstanding models. Each uses a new air motion transformer (with a frequency range of 2,700 – 45,000 Hz) that's mounted in a small horn. This high-frequency driver design is said to be highly efficient and highly dynamic. The speakers also share a similarly engineered side-firing oval woofer with a powerful Ferrite magnet system. The oval shape helps maximize the cone's surface area while making it possible to construct a narrow speaker cabinet.