R EVOLUTION OF POWER SUPER SPORT AT-SERIES SUBWOOFERS AT12D2 / AT12D4 / AT12S4
SUPER SPORT AT-SERIES CAR AUDIO SUBWOOFERS Congratulations on your purchase of the new Autotek AT-Series subwoofer system. The AT subwoofer series are a bargain with good build quality and accurate bass reproduction.
SUBWOOFER INSTALLATION AND WIRING DIRECTIONS Enclosure Materials Typically, 5/8” or 3/4” MDF (Medium Density Fiber Board) is best for most applications. 3/4” MDF is recommended. Enclosure Build Materials Connecting joints need to be glued and screwed to ensure no air escapes and joints do not separate under high pressure. Mitered and rabbit joints also help to ensure the enclosure joints are secure. Bracing Internal bracing is also recommended to prevent flexing and to strengthen the enclosure.
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Glossary of Terms Q The energy losses of relative damping (ratio of stored to dissipated energy or ratio of reactive to resistive energy). Fs Free air resonance of driver in Hz. Qms Mechanical Q. Vas Volume of air equivalent to driver from the rest position. Cms Mechanical compliance of a loud speaker piston. Mms Moving mass of total loud speaker piston assembly. Xmax The maximum linear excursion of a loud speaker. Sd Surface area of the cone. Dia The piston diameter of a loud speaker.
AT12S4 SVC 4-Ohms + - + - 4-Ohms PARALLEL + - + - + - 2-Ohms + - + - 8-Ohms SERIES + - 5
AT12D4 DVC 4-Ohms SERIES PARALLEL + + - 2-Ohms + - + + - 8-Ohms + - PARALLEL COILS / PARALLEL SUBS + + - + + - + - 1-Ohm SERIES COILS / PARALLEL SUBS + + - + + - + - 4-Ohms 6
AT12D2 DVC 2-Ohms SERIES PARALLEL + + - 1-Ohm + - + + - 4-Ohms + - PARALLEL COILS / PARALLEL SUBS + + - + + - + - 0.
SUBWOOFER DIMENSIONS 11” / 279mm 12.2” / 310mm Outside Diameter 5.7” / 144mm Mounting Depth When designing an enclosure for this subwoofer, please ensure to leave atleast 2” of clearance from the back of the motor to the back of the enclosure.
Maxxsonics Limited Warranty As the manufacturer of Maxxsonics, MB Quart, Autotek, Crunch and Hifonics car audio products, Maxxsonics USA Inc. Warrants to the original consumer purchaser the amplifier to be free from defects in material and workmanship for one (1) Year from date of purchase. All other parts and accessories of the system are warrantied to be free from defects in material and workmanship for one (1) year from date of purchase.
