Cerwin Vega XLS-15S 15" Front Firing Powered Subwoofer (Single)

Frequency - A term used to describe how often something is done

Frequency - A wave frequency is the number of times a wave repeats within a given time

Watt - A unit of measure for power

Design - A drawing or styles that shows the look and functionality of something before its made.

Environment - The conditions and surrounding area.

Planet Gizmo is an online retailer of high quality electronics and gadgets. They stock audio systems, digital recorders, DJ equipment, earphones and headphones, photography equipment, cables, video systems and audio visual furniture from a range of leading brands including Audio Pro, Canton, Denon, Lenco, Moshi, Olympus, Parrot, Philips, Pioneer, SanDisk, Techlink and Yamaha. The huge range of audio equipment includes top end speaker systems, portable docks, iPhone/iPad boom boxes, Bluetooth wireless speaker systems, subwoofers, surround sound systems, CD players, hi fi systems, digital radios and car kits, while the video systems range includes high quality blu-ray disc players and DJ equipment includes mixing tables and control software. Photography equipment includes projectors, video mixers, video converters, tripods and accessories. Planet Gizmo offer a free one year's warranty after the manufacturer's warranty has expired, together with flexible payment options, free UK mainland delivery, competitive pricing and free recycling for old electrical items.