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Autotek SM12S4 User Manual

Street machine series car audio subwoofers

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Summary of Contents for Autotek SM12S4

  • Page 2 AUTOTEK STREET MACHINE SERIES CAR AUDIO SUBWOOFERS Congratulations on your purchase of the new Autotek Street Machine Series subwoofer system. The Street Machine subwoofer series offer incredible output, great sound quality and outstanding good looks. 12-Inch DVC / SVC Subwoofer...
  • Page 3: Enclosure Materials

    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.
  • Page 4 NOTE: All above box volumes are internal values and already include subwoofer and port displacement. The F3 value represents the -3dB cut off of the enclosure in Hz. Polyfill may be added to sealed enclosures to reach desired Q-Value.
  • Page 5: Glossary Of Terms

    The resonant frequency of a vented system The half-power (-3dB) frequency of a loud speaker enclosure Qtc The Q of a loud speaker at Fc in a closed box, considering both it’s electrical and mechanical resistance. QL The Q of a vented box, resulting from all box losses.
  • Page 6 u u t t o o t t e e k k u u t t o o t t e e k k SVC 4-Ohms u u t t o o t t e e k k PARALLEL SERIES u u t t o o t t e e k k 4-Ohms u u t t o o t t e e k k...
  • Page 7 PARALLEL u u t t o o t t e e k k PARALLEL COILS / PARALLEL SUBS u u t t o o t t e e k k SERIES COILS / PARALLEL SUBS u u t t o o t t e e k k SM12D4 DVC 4-Ohms 2-Ohms...
  • Page 8 SUBWOOFER DIMENSIONS 5.83” / 148mm 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 enclousre.
  • Page 9 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.

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Sm12d4