ALPINESTARS SM3 Helmet - Heat - Matte Silver/Blue/Black - 2XL 8301026-1949-XXL Jiffy Height: 40mm (upright) 11mm (folded)

Height: 40mm (upright) 11mm (folded) measured from rail

1mm Nominal Impedance  8 ohms RMS Power Handling  150W MAX Power Handling  300W Sensitivity (1w/1m)  93dB Frequency Response 120Hz-20KHz Recommended HI Pass Crossover 140Hz Number of ways 2 ways Pair or Single Single Grill Included Yes WOOFER SPECIFICATIONS   Voice Coil Diameter 1

4 bolt pattern for comparability for most bolt on drivers

83" / 72 mm Mounting Depth 1

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ALPINESTARS SM3 Helmet - Heat - Matte Silver/Blue/Black - 2XL 8301026-1949-XXL Jiffy Height: 40mm (upright) 11mm (folded)Varied thickness shell construction for optimized protection and light weight 6 piece EPS liner with three different densities Polished inner EPS liner with special coating to reduce friction with comfort liner for rotational impact management One outer shell and two inner EPS liner sizes, with optional + 5 mm cheek pads for a tailor made fit Breakaway visor