Alpine S-S40 S-Series 100mm/10cm/4" 2-Way Coaxial Car speakers (Per Pair Max 240|90 watts RMS) Fits Mercedes A-Class 2004-12Alpine S Series 280W Coaixal Speakers Supplied with Brackets to fit 4" Speakers to Mercedes A Class (Rear Doors 100mm 120mm W169 model) [2004 2012] The S Series delivers amazingly high performance for this class of speaker. They boast the worlds first use of a CFRP diaphragm (Carbon Fiber Reinforced Plastic), which has the ideal balance of hardness and light weight, for extremely clean and accurate sound. They also feature a larger voice coil than