Our GTX Series subwoofers are rated at 250-1000 watts RMS / 500-2000 watts MAX power with a 1.5-2.5" voice coil configured for dual 2/4 ohm impedance. All GTX subs use tight Red stitching that’s sewn through a UV treated non-pressed paper cone onto a EROM foam surround. Then it’s bonded to a heavy gauge steel basket that’s bolted to double stacked high flux Y30 70-150oz Strontium ferrite magnets with a 10mm top plate. Then everything dances on a springy poly cotton spider with high powered woven tinsel leads that connect to spring loaded 5-way binding nickel plated speaker connectors. These woofers scream sound quality and truly represent Massive Audio’s commitment to value and performance. FEATURES: Heavy gauge Steel Basket with Industrial Texture Painting Dual Stacked High Flux Y30 120oz Strontium Ferrite Magnets Dual Impedance / 2.5" 4 Layer Hi-Temp Voice Coil Poly Cotton Spider with Woven Round Tinsel Leads UV Treated / Non-Pressed Paper Cone with EROM Foam Surround Round Shape PP Vacuum Dust Cap 10mm Top Plate Customized Rubber Gasket & Magnet Boot SPECIFICATIONS: Size 6" Watts RMS 250w Peak Power 500w Cone UV Treated / Non-Pressed Paper Voice Coil 1.5" Dual 4 Ohm Surround EROM Foam Magnet 70oz Terminals 5 Way Binding Push Terminals Basket Heavy Gauge Steel Tinsel Leads Woven Round X-Max 9mm (1-way) + 10mm Top Plate SPL 88 dB @2.83V/1m FS 58.8Hz Ported Box 12"H x 10"D x 10"W / 6.5 sq. in. Port Area Sealed Box 0.9 ft3