15" passive subwoofer for high-performance CT 7.3 systems
Absolute cinematic impact for dedicated theaters
The B&W SW15 CT is the reference passive subwoofer for Custom Theatre CT 7.3 systems, designed to deliver deep bass extension and physical impact worthy of the finest professional cinemas. Equipped with a massive 380 mm (15") long-throw woofer, it is capable of generating high sound pressure levels with extreme precision and control.
The closed-box configuration (Acoustic Suspension) ensures rapid response, dry bass and perfect integration with the CT 7.3 series speakers. Ideal for installation behind acoustically transparent screens or in technical walls, the SW15 CT is designed for large spaces where dynamics, depth and total control of low frequencies are required.
Professional design and maximum reliability
The 15" driver is designed to handle high excursions while maintaining stability and precision even in the most demanding scenes. The cabinet structure is optimized to reduce unwanted vibrations and resonances, improving signal clarity and transient definition.
Designed to pair with dedicated CT Series amplifiers, the B&W SW15 CT enables multi-subwoofer configurations for even low-frequency distribution and a consistent, immersive cinematic experience throughout the room.
| Type |
Custom Theater passive subwoofer |
| Configuration |
Closed box (Acoustic Suspension) |
| Woofer |
1 × 380 mm (15") long-travel |
| Frequency response |
15 Hz – 150 Hz (±3 dB) |
| Nominal impedance |
8 Ω |
| Recommended power |
Dedicated CT series amplifier |
| Dimensions (W × H × D) |
540 × 540 × 540 mm |
| Weight |
Approximately 45 kg |
| Finish |
Matte black |