Visaton WS 17 E - 4 Ohm 6.5 inch 16.51 cm Subwoofer 60 W 4 Ω

These Hi-Fi woofers from Visaton sound great and are equipped with a coated paper diaphragm, elastic rubber surround and inverted dust cap. The equalised frequency response means that the woofers can also be used as bass/midrange speakers. The special basket design makes them particularly suitable as a replacement for many standard HiFi speakers. Also ideal for building your own speakers, of course.

Price: £ 34.99 from Conrad Electronic