Our VO or Voice Optimized Series of shallow mount mid-range woofers are designed for the enthusiast who wants both sound quality and high output capability. For this series, we combined the best features of pro and high-end car audio to produce the ultimate mid-range. The VO series has high tech DD refinements such as SuperCharged motors, copper shorting rings, vented backplates, and long fiber curvilinear cones. The low moving mass design coupled to the revved up motors give these woofers an extended frequency range and the ability to handle ultra fast transients at high output levels.
Možda griješim al čini mi se da je i ovo novitet:
http://www.ddaudio.co.uk/?section=products&page=dd-2518-d4-pa