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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

PWM304

MBQUART SPEAKERS 

SPEAKER SYSTEM

Содержание Premium PWM304

Страница 1: ...l this Sound In Every Detail The PREMIUM series subwoofers have been designed for the audiophile looking for tonal balance and incredible output from their woofer The PREMIUM series subwoofers feature the following Quick Change Impedance Terminal Deep Drawn Stamp Steel Basket Heat Dispersing Vented Pole Plate Anti Resonant Magnet Cover Carbon Fiber Cone Dustcap UV Resistant Butyl Rubber Surround 2...

Страница 2: ... 30 250 4 500 1000 30 48 cm 12 30 250 4 84 500 1000 30 48 cm 12 30 250 4 84 500 1000 30 48 cm 12 30 250 4 84 500 1000 30 48 cm 12 30 250 4 84 500 1000 30 48 cm 12 30 250 4 84 84 315 3mm 12 41 278mm 10 94 183 6mm 7 23 169 6mm 6 68 ...

Страница 3: ...Ohm showing and in Parallel when 2 Ohm is showing on the Terminal label As shown in the diagram above changing the configuration is quick and easy Firmly grasp the lip of the block and pull from the terminal Rotate 180 degrees and re insert Please review page 4 for detailed wiring configurations TERMINAL IMPEDANCE BLOCK ...

Страница 4: ... 2 Ohms 2 OHM SERIES COILS 8 Ohms 8 OHM SERIES COILS PARALLEL SUBS 2 66 Ohms 8 OHM 8 OHM 8 OHM SERIES COILS PARALLEL SUBS 4 Ohms 8 OHM 8 OHM PARALLEL COILS PARALLEL SUBS 1 Ohm 2 OHM 2 OHM SERIES COILS PARALLEL SUBS 2 Ohms 8 OHM 8 OHM 8 OHM 8 OHM ...

Страница 5: ...PWM304 ...

Страница 6: ...ecure Bracing Internalbracingisalsorecommendedtopreventflexingandto strengthentheenclosure Note Thevolumetakenupbythebracingshouldbeaddedtothe totalenclosureinteriorvolume Therearetwocommonbracingmethods 1 CornerBracing Thesehelppreventtheconnectionjoints fromseparatingunderheavyvibrationandairpressure Use1 x1 MDFatallinteriorjoints 2 DiagonalBracing Theseinternalbracesconnectthetopside tothebotto...

Страница 7: ...es ElectricalQofasystem Re DCresistance Le VCinductance Pe Maximuminputpower Qts TotalQofthesystem SensSensitivity AnefficiencymeasurementindB s Vc Volumeofaclosedorsealedenclosure Vb Volumeofaventedenclosure Fc Theresonantfrequencyofaclosedorsealedsystem Fb Theresonantfrequencyofaventedsystem F3 Thehalf power 3dB frequencyofaloudspeakerenclosure Qtc TheQofaloudspeakeratFcinaclosedbox consideringb...

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