Dual Voice Coil Speakers From HOW THE DVC COAXIAL WORKS The performance requirement is simple - to get more bass into the car you must push a woofer cone harder. This can be done by either [1] additional full ranged audio power (20- 20kHz) or by [2] adding more electrical bass signal to a second coil winding on the woofer cone. The Blaupunkt DVC coaxials starts with a conventional coax speaker (using sizes above 6.5" only). A second voice coil is added to the woofer cone with a second set of terminals exiting the basket for this coil. This configuration creates a speaker with two sets of terminals with one set driving the woofer/midrange/tweeter and the second set driving the woofer cone only. This second set is recommended to be driven by a dedicated subwoofer amplifier of higher power than the coax signal. DVC COAXIAL INSTALLATION In real music, mid and high frequencies typically require far less power to play as loud as the bass, usually only 1-10 watts. With most factory installed radios offering about 10-20 watts per channel capability, a natural installation would have the radio drive the full-range terminals and a supplementary subwoofer amplifier driving the subwoofer terminals. A dedicated 2x50 watt (rms) subwoofer amp with crossover set at about 80 Hz (low-pass) nicely complements such a system and provides remarkably good overall performance. A DVC coax system will NEVER replace the performance of a dedicated 12 inch woofer in a box but it will offer bass response that a conventional coax will never be able to provide on its own. DVC SUBWOOFERS DVC installations provide "more bass with less space". By driving the same woofer harder with more power, you achieve more excursion thus higher sound pressure levels. No additional woofers or amps are needed, just more electrical power. This can be achieved by using low impedance wiring configurations or by simply adding another amp which is much easier to install than another woofer and enclosure. A single DVC woofer in a properly sized box often outperforms two woofers installed in two undersized boxes. Competition installations with cramped installations are often rewarded with remarkable SPL's from half the number off woofers due to DVC designs. | Blaupunkt Sales | | Blaupunkt Products And Service | Becker Products And Service | | VDO Instruments | E-mail Us | Home |

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