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Eminence - Swamp Thang
150W 12" 8 ohm - Swamp Thang - Very American tone suitable for Blues - Rock and Jazz.
Product Code: EMIPATSWAMP | Brand: Eminence | Model: Swamp Thang
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Eminence - Swamp Thang

Designed with heavier players in mind, the Swamp Thang provides a thick and chunky tone with loads of sustain. The awesome bottom end will hold up to even the most demanding drop-tune or 7 string players.


  • Nominal Basket Diameter 12", 304.8mm
  • Nominal Impedance* 8 ohms
  • Power Rating**
  • Watts 150W
  • Music Program N/A
  • Resonance 97Hz
  • Usable Frequency Range 70Hz - 5kHz
  • Sensitivity*** 102dB
  • Magnet Weight 59 oz.
  • Gap Height 0.31", 7.92mm
  • Voice Coil Diameter 2", 50.8mm

Thiele & Small Parameters

  • Resonant Frequency (fs) 97Hz
  • DC Resistance (Re) 6.92
  • Coil Inductance (Le) 0.42mH
  • Mechanical Q (Qms) 14.43
  • Electromagnetic Q (Qes) 0.55
  • Total Q (Qts) 0.53
  • Compliance Equivalent Volume (Vas) 41.3 liters / 1.5 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd) 43cc
  • Mechanical Compliance of Suspension (Cms) 0.1mm/N
  • BL Product (BL) 14.2 T-M
  • Diaphragm Mass Inc. Airload (MMs) 26 grams
  • Efficiency Bandwidth Product (EBP) 177
  • Maximum Linear Excursion (Xmax) 0.8mm
  • Surface Area of Cone (Sd) 532.4 cm2
  • Maximum Mechanical Limit (Xlim) N/A

Mounting Information

  • Recommended Enclosure Volume
  • Sealed Acceptable
  • Vented Acceptable
  • Driver Volume Displaced 137.3 / 2.25 liters
  • Overall Diameter 12.01", 305.1mm
  • Baffle Hole Diameter 10.95", 278.1mm
  • Front Sealing Gasket Fitted as standard
  • Rear Sealing Gasket Fitted as standard
  • Mounting Holes Diameter 0.25", 6.4mm
  • Mounting Holes B.C.D. 11.63", 295.4mm
  • Depth 5.2", 132mm
  • Net Weight 11.1 lbs, 5 kg
  • Shipping Weight 12.8 lbs, 5.8 kgs

Materials of Construction

  • Coil Construction Copper voice coil
  • Coil Former Polyimide former
  • Magnet Composition Ferrite magnet
  • Core Details Non-vented core
  • Basket Materials Pressed steel basket
  • Cone Composition Paper Cone
  • Cone Edge Composition Paper cone edge
  • Dust Cap Composition Zurette dust cap

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Delivery Info for Eminence - Swamp Thang  to locations within the United Kingdom and Ireland
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