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Eminence Kappa Pro 18LF - 8 ohm 18" 800W Low Frequency Pro Audio Woofer

Eminence Kappa Pro 18LF - 8 ohm 18" 800W Low Frequency Pro Audio Woofer
Ship weight
12.77 kg
Priced per:
8 ohm
Your price:
CDN $300.97
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The latest addition to the popular Kappa series of drivers, the Kappa Pro 18LF provides tons of low frequency output in a lightweight, durable cast aluminum chassis. Use it as a subwoofer in small to medium sized boxes, a woofer in large three-way PA enclosures, or as a high-power bass guitar woofer. The 1,600 watt program power rating makes it an easy choice for new box designs or as a replacement for many single and double subwoofer cabinets.

Speaker Detail
Nominal Basket Diameter18", 457 mm
Nominal Impedance*8 Ω
Power Rating*
Program Power1600 W
Watts800 W
Resonance32 Hz
Usable Frequency Range38 Hz - 0.7 kHz
Sensitivity*98 dB
Magnet Weight120 oz.
Gap Height0.37", 9.5 mm
Voice Coil Diameter3", 76 mm
Thiele & Small Parameters
Resonant Frequency (fs)32 Hz
DC Resistance (Re)5.39 Ω
Coil Inductance (Le)1.21m H
Mechanical Q (Qms)10.66
Electromagnetic Q (Qes)0.34
Total Q (Qts)0.33
Compliance Equivalent Volume (Vas)391.61 liters / 13.83 cu.ft.
Peak Diaphragm Displacement Volume (Vd)927.2 cc
Mechanical Compliance of Suspension (Cms)0.21 mm/N
BL Product (BL)19.39 T-M
Diaphragm Mass Inc. Airload (MMs)119 grams
Efficiency Bandwidth Product (EBP)94
Maximum Linear Excursion (Xmax)8 mm
Surface Area of Cone (Sd)1159 cm2
Maximum Mechanical Limit (Xlim)18 mm
Mounting Information
Recommended Enclosure Volume
Sealed N/A
Vented 113.27-353.96 liters / 4-12.5 cu.ft.
Driver Volume Displaced0.234 cu.ft. / 6.62 liters
Overall Diameter18", 457.2 mm
Baffle Hole Diameter16.58", 421.1 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.28", 7.1mm
Mounting Holes B.C.D.17.25", 438.2mm
Depth8.15", 207 mm
Net Weight24.5 lbs, 11.11 kg
Shipping Weight28.1 lbs, 12.75 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerKapton former
Magnet CompositionFerrite magnet
Core DetailsVented and extended core
Basket MaterialsDie-cast aluminum basket
Cone CompositionTreated paper cone
Cone Edge CompositionCloth cone edge
Dust Cap CompositionTreated paper dust cap
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This item: Eminence Kappa Pro 18LF - 8 ohm 18" 800W Low Frequency Pro Audio Woofer [1 item(s)]
Price for all: CDN $300.97
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