Maxxsonics HFI1204 user manual

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HFi SERIES CAR AUDIO SUBWOOFERS Congratulations on your purchase of the new Hifonics HFi Series subwoofer system. The HFi subwoofer series offer superior sonic accuracy, intense high power sound quality with exotic build materials and outstanding good looks. Available in DVC & SVC 4-Ohm High-Temp KSV Voice Coils 1” NBR Reinforced Rubber Surround Large Air Cooled Magnet Assembly Integrated One Piece Poly Cotton Spider Injected Poly Light Rigid Cone Nickel Plated Push & Insert Speaker Terminals

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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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HIFONICS HF SERIES SUBWOOFERS Parameters HFi12S4 HFi12D4 W iring Single Series Coils NomZ 4.2 8.88 Ohm Sd 0.05 0.05 sqM Revc 3.5 7.4 Ohm BL 10.85 13.92 TxM Vas 104.86 107.4 Liter 278.74 285.49 uM/N Cms Mmd 109.41 97.39 Grams Mms 116.12 104.1 Grams Fs 27.98 29.2 Hz Qms 5.12 4.64 Qes 0.607 0.729 Qts 0.542 0.63 no 0.366 0.354 % SPL@1W 87.7 87.68 dB Xmax 11 11 mm Rms 300 300 Watts Maxx 600 600 Watts CLOSED BOX DESIGNS (SEALED) Standard Tight Bass Cubic Feet / Liters Box Volume 1.25 / 35.4 1.25 / 35.

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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 diam

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HFi12D4 DVC 4Ohms Parallel Series - - + + - + - - + + 2-Ohms - + 8-Ohms + - + - Parallel Coils / Parallel Subs - - + + - - + + - - + 1-Ohm + + - Series Coils / Parallel Subs - - + + - - - - + + + + - 8-Ohms + 5 - - + + - - + + - - + +

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5.61” / 142.5mm 2.8” / 71mm 6 14 Subwoofer Dimensions 10.94” / 278.5mm

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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. Maxxsonics will repair or replace at it’s option and

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