Audison APS 10 D subwoofer 10" (250 mm).

Audison APS 10 D (PRIMA серия) сабвуфер 10" (250 мм).

The APS 10 D is designed to deliver maximum performance in a sealed enclosure with ultra-compact volumes, from 10 lt. to 12 lt. 
The dual voice-coil and single voice coil versions feature push connectors for ease of wiring and configurations. 
Prima subwoofer components have been developed with a primary goal: to deliver high output in tight spaces. 
Output is a matter of excursion; the more air the cone moves, the more output. However reduced mounting depth traditionally has meant low excursion. 
Prima subwoofers employ a special cone-dustcap-basket geometry which guarantees large excursion of the mobile group, while keeping the mounting depth to a minimum. 
The surround and spider have been carefully designed to prevent the “rocking-mode” phenomenon. 
The cooling circuit has been designed with air vents on the basket underneath the spider, eliminating the need for vents on the bottom-plate. 
This allows the subwoofer to be mounted close to the back wall of the enclosure, making the most of the reduced mounting depth.