SX1240

30 cm (12") Subwoofer

Power Rating 500/1000 Watts, 4 Ω

SX1040

25 cm (10") Subwoofer

Power Rating 400/800 Watts, 4 Ω

SX840

20 cm (8") Subwoofer

Power Rating 300/600 Watts, 4 Ω