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Eminence Sigma Pro 18 650W 18" Driver
Performance-optimised for high power bass applications. Recommended for professional audio as a woofer in vented enclosures.
Specifications:
Thiele & Small Parameters :
Mounting Information :
Materials of Construction:
- Nominal Basket Diameter 18", 457.2mm
- 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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Eminence Sigma Pro 18 Mk 2 Twin Pack is a package consisting of the following items:
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2 x Eminence Sigma Pro 18 - 18" 650W 8 Ohm SPL: 99.0dB Fs: 28Hz Xmax: 6.1mm |
 2 IN STOCK |
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