The Ramsdell Pro Audio 670R is a low-profile double 15” subwoofer. This 14-inch-tall sub puts 4,000 Watts of program power into a compact space underneath a stage or any tight space. The 670R enclosure is designed for high output and low frequency program down to 40 Hz. The dual 15” woofers have 4” voice coils with 13mm of excursion in each direction. The enclosure uses a proprietary internal design to maximize desired results. This combines for a subwoofer with a balance of high output, and punchy response in a reduced-height form factor.