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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.
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 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.
DV    Diameter of vent.
LV     Length of vent.
H       Height.
W      Width.
D      Depth

 

Glossary of Terms

Содержание HFi12D4

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Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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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