The S8028 II is a very high-output, high power bass reflex subwoofer. The system is equipped with two advanced, hypervented 18” RCF precision woofers mounted in a bass reflex configuration. The cabinet design is optimised to achieve tight and maximised output. Each 18” features massive vented magnets and 4” copper voice coil and represents the state of the art of RCF precision transducers technology. The system is able to produce a Max SPL of 141 dB and handles 3000 Watts AES. The cabinet features two Neutrik Speakon connectors in a recessed input plate. A M20 pole mount adaptor is provided on the top of the cabinet.Features2 x 18" high-efficiency 4.0" voice-coil woofer with Inside/Outside Coil Technology141 dB maximum sound pressure levelResponse down to 30 HzSystem Power rating 3000 Watt RMSM20 standard pole mount in top section of cabinetBaltic Birch cabinet painted with black, heavy duty, textured epoxyRecessed Speakon NL4 Input/OutputProtective metal grille, polyester fabric coatedAcoustical Specifications Frequency Response -10 dB: 30 Hz ÷ 200 HzMax SPL @ 1m: 141 dBSystem Sensitivity: 101 dBNominal Impedance: 4 Power Handling: 3000 WPeak Power Handling: 12000 WRecommended Amplifier: 6000 WCrossover frequencies: Recommended 100 Hz Transducers Woofer: 2 X 18" woofer, 4" voice coilNominal Impedance: 8 Input Power Rating: 3000 W AESSensitivity: 100 dB Input SectionInput connector: Speakon NL4 Cabinet Cabinet Material: Black epoxy coatingHandles: 2 recessedPole Mount/Cap: YesGrille: Custom perforated steel grilleColour: Black, scratch resistant paint Physical SpecificationsHeight: 630 / 24.80 mm/inchWidth: 1045 / 41.14 mm/inchDepth: 770 / 30.31 mm/inchNet Weight: 80 / 176 kg/lbs.