In Phase’s award winning subwoofers provide a heady mix of high quality and raw power, like the best cars. Coming in ten inch, twelve inch and the mighty fifteen inch size, they have advanced design features. Double bottom suspension spiders for total linearity under massive high power drive. Cross woven tinsel leads to transfer power to the large diameter, four layer black aluminium voice coils and powerful heavy duty magnet structures make for an iron grip and melodic control of the bass line of your music. Seamless lightweight polypropylene composite cones with bottom yoke supports provide controlled high power output. The speaker wires connect via Platinum plated spring terminals for perfect power transfer. The polished and chromed chassis with genuine rubber top gaskets look superb, making them suitable for inverted mounting for show use. In Phase subwoofers; for those who want both superb bass quality and the power to impress.