England

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Sub-bass systems meant to disappear under a pair of speakers.

S/81212-inch driver with a passive radiatorSubwoofer · 44.4 × 45.1 × 45.5 cmCarbon SpecialCarbon-fibre 12-inch driverSubwoofer · 43.0 × 49.5 × 43.0 cmT/9x10-inch driver in a compact cabinetSubwoofer · 37.0 × 39.3 × 34.0 cmClassic 99Three 10-inch drivers in a lineSubwoofer · 63.5 × 48.9 × 68.0 cmHT/151015-inch driver for filmSubwoofer · 54.0 × 49.0 × 46.2 cm