Goldwood Sound Dual Voice Coil 8" Replacement Speaker Woofer Black (GW-408D) 1 Goldwood Sound GW-408D dual voice coil 8" woofer, 100 watts RMS and 220 watts Max, 44 - 5,000Hz frequency response, 86dB SPL, 8ohm 1" aluminum dual voice coil, 20oz magnet with bumper plate, poly laminated cone with rolled foam surround Stamped steel frame, overall size is 8", fits enclosure hole size of 7.125", mounting depth is 3.625", designed and engineered in the USA Use for pro DJ speakers, pro PA speakers, pro karaoke speakers, live sound speakers, fixed installation speakers, studio monitors and home audio speakers This listing and price is for 1 Goldwood GW-408D pro audio woofer