820H 8" Lead / Rhythm Guitar Speaker - Hemp

Series: Patriots

Model: 820H

Application: 8" Open or Closed Back

Configuration: 1, 2, or 4 X 8"

Low End Response: Aggressive

High-End Response: Moderate

Overall Coloration*: A rich, warm, full bodied tone that emulates a larger cone, with fat, punchy lows, smooth, but defined highs, and a nice break up. The mids are prominent, but with a warm, smooth texture.

Break-up Modes: Balanced

Power Range: Up to 20 watts

Instrument*: Lead/Rhythm Guitar, Harmonica

Genre of Music*: Jazz, Rock, Country, and Blues

Resonant Frequency (fs) 144 Hz

DC Resistance (Re) 3.64 Ω

Coil Inductance (Le) 0.33m H

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) 36.7 cc

Mechanical Compliance of Suspension (Cms) 0.13 mm/N

BL Product (BL) 5.74 T-M

Diaphragm Mass Inc. Airload (MMs) 9 grams

Efficiency Bandwidth Product (EBP) 156

Maximum Linear Excursion (Xmax) 1.59 mm

Surface Area of Cone (Sd) 230.9 cm2

Maximum Mechanical Limit (Xlim) N/A

Enclosure Type (Closed Back) Acceptable

Enclosure Type (Open Back) Acceptable

Overall Diameter 8.24", 209.3 mm

Baffle Hole Diameter 7.13", 181.1 mm

Depth 3.06", 77.7 mm

Front Sealing Gasket Yes

Rear Sealing Gasket N/A

Mounting Holes Diameter 0.22", 5.6 mm

Mounting Holes B.C.D. 7.75", 196.9 mm

Net Weight 3.10 lbs, 1.41 kg

Shipping Weight 3.90 lbs, 1.77 kg

Voice Coil: Inside/outside copper

Magnet Material: Ferrite

Basket Materials: Pressed steel

Cone Composition: Hemp paper

Dust Cap: Zurette