Most expensive loudspeakers

The Acapella Spharon Excalibur speakers cost $325,000 (£186,000) and can be fitted into living rooms having a minimum size of 40 m² (131 ft²) and consist of two pillars with four large 15 in (38 cm) woofers on each unit. Product Specifications: Efficiency: 100 dB/1W/1m Power handling: 100 watts (Peak handling of 1000 watts at 10 ms with no distortion) Recommended power output of the amplifier from: 15 watts Dimensions: 90.5 in x 59 in x 51.2 in (HxWxD) Weight: 1364 lb per speaker