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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 free of charge during the warranty period, any system 

component that proves defective in materials and workmanship under normal installation,

use and service provided that the product is returned to the authorized Maxxsonics dealer

from where it was purchased. A photo copy of the original receipt must accompany the 

product being returned.

Valid purchase receipts will contain the name and address of the authorized reseller.

Any damage to the product as a result of misuse, abuse, accident, incorrect wiring,

improper installation, alteration of date code or bar code labels, revolution, natural 

disaster, or any sneaky stuff because someone messed up, repair or alteration out side 

of our factory or authorized service centers and any thing else you have done that you

should not have done is not covered.

This warranty is limited to defective parts and specifically excludes any incidental

or consequential damages connected therewith. This warranty is not to be construed

as an insurance policy.

Warranty on installation labor, removal, re-installation and freight charges are not the 

responsibility of Maxxsonics USA Inc.

Warranty products damaged as a result of insufficient or improper packing materials

are not covered by this limited warranty and such damaged product will be returned

“as is” at the expense of the owner.

 

Maxxsonics Limited Warranty

Summary of Contents for HFi12D4

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Page 2: ...ers knowledge and experience can ensure a problem free and cosmetically integrated installation If you choose to install the subwoofers yourself please read the entire manual very carefully 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 I...

Page 3: ... The volume taken up by the bracing should be added to the total enclosure interior volume There are two common bracing methods 1 Corner Bracing These help prevent the connection joints from separating under heavy vibration and air pressure Use 1 x 1 MDF at all interior joints 2 Diagonal Bracing These internal braces connect the top side to the bottom side as well front side to back side This prev...

Page 4: ...er 3 76 2 3 76 2 In ch e s M illim e t e rs Port Length 5 6 142 2 5 127 In ch e s M illim e t e rs F3 39 39 H z Box Volume 2 5 70 79 2 5 70 79 Cu b i c F e e t Li t e r s Fb 33 34 H z Port Size inside diameter 3 76 2 3 76 2 In ch e s M illim e t e rs Port Length 5 127 4 6 116 84 In ch e s M illim e t e rs F3 32 33 H z NOTE All above box volumes are internal values and already include subwoofer and...

Page 5: ...oud speaker Qes Electrical Q of a system Re DC resistance Le VC inductance Pe Maximum input power Qts Total Q of the system Sens Sensitivity An efficiency measurement in dB s Vc Volume of a closed or sealed enclosure Vb Volume of a vented enclosure Fc The resonant frequency of a closed or sealed system Fb The resonant frequency of a vented system F3 The half power 3dB frequency of a loud speaker e...

Page 6: ...5 HFi12D4 DVC 4Ohms Parallel Coils Parallel Subs 1 Ohm 8 Ohms Series Coils Parallel Subs Parallel 2 Ohms Series 8 Ohms ...

Page 7: ...6 10 94 278 5mm 2 8 71mm 5 61 142 5mm Subwoofer Dimensions ...

Page 8: ...Valid purchase receipts will contain the name and address of the authorized reseller Any damage to the product as a result of misuse abuse accident incorrect wiring improper installation alteration of date code or bar code labels revolution natural disaster or any sneaky stuff because someone messed up repair or alteration out side of our factory or authorized service centers and any thing else yo...

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