Pioneer TS-W3002D4 (TSW3002D4) 12" Dual 4 ohm Champion PRO Sub
Pioneer Champion Series PRO TS-W3003D4 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Sub of the Month - Pioneer TS-W3002D4 Champion Series Pro Sub - Fast Car
Audio Visual World - Pioneer TS300S4 - 30cm (12") 4Ω Single Coil D-Series Pioneer Champion Series PRO Subwoofer - Replacement for Pioneer TS-W3003D4 TS-W3002D4, and TS-W3001D4.
LAB SlapBox™ 2.25 ft^3 Ported MDF Enclosure for Single Pioneer TS-W3002D2 / TS-