OPW1239 12"Woofer/4 OhmStamped Fashion Design BasketOne Piece Aluminum GasketCompaction paper Cone W/NBR Surround650 Watts RMS,1300 Watts Max.Power3"4-Layers ASV(Better Heat Radiation)Voice Coil130 Oz Ferrite Magnet More OPW1039 10"Woofer/4 OhmStamped Fashion Design BasketOne Piece Aluminum GasketCompaction paper Cone W/NBR Surround500 Watts RMS,1000 Watts Max.Power2.5"4-Layers ASV(Better Heat Radiation)Voice Coil75 Oz Ferrite Magnet More OPW839 8"Woofer/4 OhmStamped Fashion Design BasketOne Piece Aluminum GasketCompaction paper Cone W/NBR Surround350 Watts RMS,700 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation)Voice Coil50 Oz Ferrite Magnet More OPW1238 12"Woofer/4 OhmStamped Fashion Design BasketOne Piece Rubber GasketIMPP Cone W/Foam Surround400 Watts RMS,800 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation) Voice Coil50 Oz Ferrite Magnet More OPW1038 10"Woofer/4 OhmStamped Fashion Design BasketOne Piece Rubber GasketIMPP Cone W/Foam Surround400 Watts RMS,800 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation) Voice Coil50 Oz Ferrite Magnet More OPW1237 12"Woofer/4 OhmStamped Fashion Design BasketSectional Type Foam GasketNon-pressed paper Cone W/NBR Surround400 Watts RMS,800 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation) Voice Coil50 Oz Ferrite Magnet More OPW1037 10"Woofer/4 OhmStamped Fashion Design BasketSectional Type Foam GasketNon-pressed paper Cone W/NBR Surround400 Watts RMS,800 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation) Voice Coil50 Oz Ferrite Magnet More OPW1236 12"Woofer/4 OhmStamped Fashion Design BasketOne Piece Rubber GasketCompaction paper Cone W/NBR Surround400 Watts RMS,800 Watts Max.Power2.0"4-Layers ASV(Better Heat Radiation) Voice Coil50 Oz Ferrite Magnet More 1234