Coluna Subwoofer Redondo de 4 Polegadas e 40 W 4 Ohm[8 Ohm] | Worten.pt
3 Polegada Baixo Speaker Hifi 8 Ohm 15 W Subwoofer Ultra Fino DIY Home Baixo Estéreo Choque 8ohm 15 W HiFi Sub Woofer Speaker Baixo De $200,13 | DHgate
Celestion FTR18-4080HDX 18'' Low Frequency Subwoofer Driver, 8 Ohm na Gear4Music.com
Woofer Aluminio 18 1200W 8 ohm (PD18PS) - Power Dynamics
RCF L18P300, Woofer 18", 1000 Watt RMS / 8 Ohm | MUSIC STORE professional