Sony XSF 1027 speakers are an easy fit design for simple installation in a wide range of vehicles. 30 watts RMS; 130 watts peak output; Size 10cm; EAN/MPN/UPC/ISBN: 4905524673227. Additional Information * Please note that this item has previously been on sale at the same price. Prices correct as displayed but are subject to change DAB and internet radio buying guide Argos Buying Guide