BOSS Audio Systems CH5530B Chaos Series 5.25 Inch Car Stereo Door Speakers - 225 Watts Max, 3 Way, Full Range Audio, 1 Inch and 0.5 Inch Tweeters, Coaxial, Sold in Pairs : Amazon.co.uk: Electronics & Photo
6.5" Round Ceiling Wall Speaker 100V Line / 8 Ohm 2 Way Premium PA Surround | DIY at B&Q