The MAG Audio SUB18-4 is the most powerful version within MAG Audio’s compact subwoofer line. Equipped with an 18″ woofer and an optimized bass-reflex design, this passive subwoofer delivers impressive low-end reproduction down to 35 Hz – ideal for applications where deep, controlled bass is essential.
With its high load capacity, rugged construction and versatility, the SUB18-4 is ideally suited for touring, rental and fixed installations where maximum performance is required. The enclosure is constructed of plywood, finished with a durable polyurea coating and features an M20 intermediate pole adapter for integration with full-range speakers. The SUB18-4 offers 800 W of AES power, a sensitivity of 97 dB and a maximum SPL of 134.5 dB. This makes it a solid foundation for demanding sound setups in larger venues, stages and clubs. Key features- 18 “woofer with 4” voice coil
- 800 W AES / 1600 W program power
- 35-300 Hz frequency range
- 134.5 dB max SPL
- 4 Ohm impedance
- Optimized bass reflex design
- M20 intermediate pole adapter
- Rugged plywood housing with polyurea coating
- Dimensions: 510 × 650 × 595 mm
- Weight: 47 kg
- Mobile applications in rental, theater and touring
- Fixed installations in clubs, halls and venues
- High-output support for full-range speakers

