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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

Summary of Contents for ATLAS ATL12D2

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Page 2: ...ecommend professional installation by an authorised Hifonics dealer Your dealers knowledge and experience can ensure a problem free and cosmetically integrated installation If you choose to install th...

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...

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Page 6: ...ud 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 s...

Page 7: ...erminal Block Each Atlas comes with 2 jumper pins in the Terminal Block Parallel Coils Parallel Subwoofers Series Coils Series Subwoofers Series 8 Ohms Parallel 2 Ohms Series Coils Parallel Subwoofers...

Page 8: ...erminal Block Each Atlas comes with 2 jumper pins in the Terminal Block Parallel Coils Parallel Subwoofers Series Coils Series Subwoofers Series 4 Ohms Parallel 1 Ohm Series Coils Parallel Subwoofers...

Page 9: ...ofer Dimensions Due to the vented backplate you must allow for an additional 2 behind the subwoofer when designing your speaker enclosure 8 A B A Cut Out Diameter 304mm 11 97 B Mounting Depth 183 3mm...

Page 10: ...alid 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...

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