DB Research, Subwoofer, models:

BASS INFERNO BSW10S	Installation Instructions & Owner'S Manual
Bass Inferno BW10D	Installation Instructions
DB DRIVE OKUR K6 10D4	Installation Instructions & Owner'S Manual
DB Drive Euphoria EPS68	User Manual
EUPHORIA EPS8	User Manual
Euphoria EWX8D2	User Manual
Euphoria EWXC Series	User Manual
HYPNOTIC HEW12	Installation Instructions & Owner'S Manual
Hypnotic HW12D4	Installation Instructions & Owner'S Manual
Platinum PTW10D2	User Manual
QUANTUM AUDIO QW3000-8D4	Installation Instructions & Owner'S Manual
Quantum Audio QWX4000/8D4	Installation Instructions & Owner'S Manual