HFX12D4
HF SERIES CAR AUDIO SUBWOOFERS Congratulations on your purchase of the new Hifonics HF Series subwoofer system. The HFX12D4 subwoofer offers superior sonic accuracy, intense high power sound quality with exotic build materials and outstanding good looks.
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.
HFX12D4 DVC 4Ohms Parallel + + + - Series + + 2-Ohms - - + + + - + - +8-Ohms - Parallel Coils / Parallel Subs + + + - + - + + + - + - +1-Ohm - Series Coils / Parallel Subs + 5 + + - + - + + + - + - + 4-Ohms
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.
PART #: U1210
