Eminence

collapse expand iconDescription

The Patriot Series 820H is a 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.
Clearance Eminence Patriot 8" Lead/Rhythm Guitar Speaker Blue/Red Star, Stripes
Clearance Eminence Patriot 8" Lead/Rhythm Guitar Speaker Blue/Red Star, Stripes
Clearance Eminence Patriot 8" Lead/Rhythm Guitar Speaker Blue/Red Star, Stripes

collapse expand iconFeatures

  • Nominal Basket Diameter: 8", 203.2mm
  • Nominal Impedance: 4 ohms
  • Power Rating: 20W
  • Resonance: 143.55Hz
  • Usable Frequency Range: 80Hz - 4.6kHz
  • Sensitivity: 96.1dB
  • Magnet Weight: 15oz.
  • 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 / .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): 0mm
    Mounting Information
    • Driver Volume Displaced: 31.12 cu.in. / .51 liters
    • Overall Diameter: 8.24", 314.45mm
    • Baffle Hole Diameter: 11.06", 209.3mm
    • Front Sealing Gasket: Fitted as Standard
    • Mounting Holes Diameter: 0.22", 5.58mm
    • Mounting Holes B.C.D.: 7.75", 193.85mm
    • Depth: 3.06", 77.72mm
    • Net Weight: 3.1lb., 1.41kg.
    • Shipping Weight: 3.9lb., 1.77kg.
    Material of Construction
    • Coil Construction: Copprt Voice Coil
    • Coil Former: Polymide 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