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Eminence Patriot 820H 20W 4 Ohm 8" Guitar Speaker

Product Code: EMIPAT820H Brand: Eminence Model: Patriot 820H 4 ohm
Eminence Patriot 820H 20W 4 Ohm 8 inch Guitar Speaker
£74.22
£74.22 ex VAT
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2-3£73.11 ea.
4-7£71.99 ea.
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Eminence Patriot 820H 20W 4 Ohm 8" Guitar Speaker

4 ohm hemp cone speaker with rich, warm, full bodied tone with fat, punchy lows, smooth, but defined highs, and a nice break up. Prominent mids, but with a warm, smooth texture.

Specifications:

  • Nominal Basket Diameter 8", 203.2mm
  • Nominal Impedance* 4 ohms
  • Power Rating** :Watts 20W, Music Program N/A
  • Resonance 143.55Hz
  • Usable Frequency Range 80Hz - 4.6kHz
  • Sensitivity*** 96.1dB
  • Magnet Weight 15 oz.
  • Gap Height 0.25", 6.35mm
  • Voice Coil Diameter 1", 25.4mm


Thiele & Small Parameters:

  • Resonant Frequency (fs) 143.55Hz
  • DC Resistance (Re) 3.64
  • Coil Inductance (Le) 0.33mH
  • Mechanical Q (Qms) 18.78
  • Electromagnetic Q (Qes) 0.92
  • Total Q (Qts) 0.88
  • Compliance Equivalent Volume (Vas) 9.62 liters / 0.34 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd) 36.7cc
  • Mechanical Compliance of Suspension (Cms) 0.13mm/N
  • BL Product (BL) 5.74 T-M
  • Diaphragm Mass Inc. Airload (MMs) 9.25 grams
  • Efficiency Bandwidth Product (EBP) 155.7
  • Maximum Linear Excursion (Xmax) 1.59mm
  • Surface Area of Cone (Sd) 230.9 cm2
  • Maximum Mechanical Limit (Xlim) N/A

    Mounting Information:

  • Recommended Enclosure Volume: Sealed N/a, Vented N/a
  • Driver Volume Displaced 31.12 cu.in. / 0.51 liters
  • Overall Diameter 8.24", 209.3mm
  • Baffle Hole Diameter 7.13", 181.1mm
  • Front Sealing Gasket Fitted as standard
  • Rear Sealing Gasket N/A
  • Mounting Holes Diameter 0.22", 5.58mm
  • Mounting Holes B.C.D. 7.75", 193.85mm
  • Depth 3.06", 77.72mm
  • Net Weight 3.1 lbs, 1.41 kg
  • Shipping Weight 3.9 lbs, 1.77 kgs


Materials of Construction:

  • Coil Construction Copper voice coil
  • Coil Former Polyimide former
  • Magnet Composition Ferrite magnet
  • Core Details None-vented core
  • Basket Materials Pressed steel basket
  • Cone Composition Paper cone
  • Cone Edge Composition Full paper cone
  • Dust Cap Composition Zurette dust cap
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