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fyrpwr

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Posts posted by fyrpwr

  1. This will do the job in 600s-------------------------------

    Eminence

    SIGMA PRO 18A-2

    Nominal Impedance* 8 ohms

    Power Rating**

    Watts 650W

    Music Program 1300W

    Resonance 28Hz

    Usable Frequency Range 41Hz - 2.4kHz

    Sensitivity*** 99dB

    Magnet Weight 120 oz.

    Gap Height 0.37", 9.53mm

    Voice Coil Diameter 3", 76.2mm

    THIELE & SMALL PARAMETERS

    Resonant Frequency (fs) 28Hz

    DC Resistance (Re) 6.29

    Coil Inductance (Le) 1.9mH

    Mechanical Q (Qms) 8.28

    Electromagnetic Q (Qes) 0.3

    Total Q (Qts) 0.29

    Compliance Equivalent Volume (Vas) 441.2 liters / 15.6 cu.ft.

    Peak Diaphragm Displacement Volume (Vd) 695cc

    Mechanical Compliance of Suspension (Cms) 0.24mm/N

    BL Product (BL) 22.1 T-M

    Diaphragm Mass Inc. Airload (MMs) 130 grams

    Efficiency Bandwidth Product (EBP) 93

    Maximum Linear Excursion (Xmax) 6.1mm

    Surface Area of Cone (Sd) 1140 cm2

    Maximum Mechanical Limit (Xlim) 18mm

    MOUNTING INFORMATION

    Recommended Enclosure Volume

    Sealed N/a

    Vented 93-212 liters / 3.3-7.5 cu.ft.

    Driver Volume Displaced 403.9 cu.in. / 6.62 liters

    Overall Diameter 18", 457.2mm

    Baffle Hole Diameter 16.56", 420.5mm

    Front Sealing Gasket Fitted as standard

    Rear Sealing Gasket Fitted as standard

    Mounting Holes Diameter 0.28", 7.1mm

    Mounting Holes B.C.D. 17.25", 438.2mm

    Depth 8.15", 207mm

    Net Weight 24.5 lbs, 11.1 kg

    Shipping Weight 28.1 lbs, 12.8 kgs

    MATERIALS OF CONSTRUCTION

    Coil Construction Copper voice coil

    Coil Former Polyimide former

    Magnet Composition Ferrite magnet

    Core Details Vented and extended core

    Basket Materials Die-cast aluminum basket

    Cone Composition Paper cone

    Cone Edge Composition Cloth cone edge

    Dust Cap Composition Solid composition paper dust cap

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