ALPINE R-W12D4 12"" 30cm STEREO SUBWOOFER 4Ω+4Ω MONO 2Ω 750W RMS MAX 2250W SUB 4958043888122 | eBay
ALPINE 1000 WATT type r 10 inch subwoofer with enclosure £75.00 - PicClick UK
R2-W8D4 - Subwoofer da 8 pollici (20 cm) R-Series con doppia bobina mo – Alpine Italia Webshop
Audison SR Series SR 1.500 1000W Mono Amplifier with VCR-S1 Sub Volume Remote Control and 2 Prima Series APS 10 S4S 10" 800W SVC 4 Ohm Woofer - Creative Audio