Temblor(TM) T10 - Active Subwoofer
18" passive subwoofer, white
Electro-Voice EVOLVE 50 - Subwoofer - White
Ultra-compact Passive 6.5" Dual Coil Subwoofer
BIAMP Desono DX-IC10SUB-W
BIAMP Desono SUB2400-BL
Watts Dual 6 inch. Subwoofer