Pioneer Champion Series PRO TS-W3003D4 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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.
PIONEER TS W3002D4 12 Champion Series PRO SUBWOOFER | Reverb
Pioneer TS-W3003D4 12" Champion Pro Series 2000W Subwoofer
TS-W3002D4 - 12" Champion Series PRO Subwoofer with 3500 Watts Max. (1000 Watts Nom.) | Pioneer of Canada - English
PIONEER TS-W3002D4 12 CHAMPION SERIES PRO SUBWOOFER | Review Video Car
Pioneer TS-W3002D4 Champion Series Pro 12" sub with dual 4-ohm voice coils at Crutchfield