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Eminence

Sigma Pro 18 A V2

Šifra Proizvoda: 10795

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Kratak opis

SIGMA PRO 18A Professional Series Recommended for professional audio as a woofer in vented enclosures.

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SPECIFICATION

  • Nominal Basket Diameter 18", 457.2 mm
  • Nominal Impedance 8 ohms
  • Power Rating Watts 650 W / Music Program 1300 W
  • Resonance 28 Hz
  • Usable Frequency Range 41 Hz - 2.4 kHz
  • Sensitivity 99
  • Magnet Weight 120 oz.
  • Gap Height 0.375", 9.53 mm
  • Voice Coil Diameter 3", 76.2 mm


THIELE & Small Parameters

  • Resonant Frequency (fs) 28 Hz
  • DC Resistance (Re) 6.29
  • Coil Inductance (Le) 1.90 mH
  • Mechanical Q (Qms) 8.28
  • Electromagnetic Q (Qes) 0.30
  • Total Q (Qts) 0.29
  • Compliance Equivalent Volume (Vas) 441.2 liters / 15.6 cu. ft.
  • Peak Diaphragm Displacement Volume 695 cc
  • Mechanical Compliance of Suspension (Cms) 0.24 mm/N
  • BL Product (BL) 22.1 T-M
  • Diaphragm Mass inc. Airload (Mms) 130 grams
  • Efficiency Bandwidth Product (EBP) 93
  • Maximum Linear Excursion (Xmax) 6.1 mm
  • Surface Area of Cone (Sd) 1140.0 cm²
  • Maximum Mechanical Limit (Xlim) 18.0 mm


MOUNTING Information

  • Recommended Enclosure Volume
  • Sealed N/A
  • Vented 93-212 liters/3.3-7.5 cu.ft.
  • Overall Diameter 18", 457.2 mm
  • Baffle Hole Diameter 16.56", 420.5 mm
  • Front Sealing Gasket fitted as standard
  • Rear Sealing Gasket fitted as standard
  • Mounting Holes Diameter 0.28", 7.1 mm
  • Mounting Holes B.C.D. 17.25", 438.2 mm
  • Depth 8.15", 207 mm


MATERIALS of Construction

  • Copper voice coil
  • Polyimide former
  • Ferrite magnet
  • Vented and extended core
  • Die-cast aluminum basket
  • Paper Cone
  • Cloth cone edge
  • Solid composition paper dust cap

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