Recommended for professional audio mid-range reproduction in sealed enclosures. Also suitable for mid-bass or floor monitor applications in vented 2-way cabinets.
 
 
SPECIFICATION
Nominal Basket Diameter
8", 203 mm
Nominal Impedance*
8 Ω
Power Rating*
Program Power
500 W
Watts
250 W
Resonance
62 Hz
Usable Frequency Range
95 Hz - 3.3 kHz
Sensitivity*
92.9 dB
Magnet Weight
38 oz.
Gap Height
0.312", 7.9 mm
Voice Coil Diameter
2", 51 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs)
62 Hz
DC Resistance (Re)
5.37 Ω
Coil Inductance (Le)
0.67m H
Mechanical Q (Qms)
6.57
Electromagnetic Q (Qes)
0.31
Total Q (Qts)
0.29
Compliance Equivalent Volume (Vas)
21.43 liters / 0.76 cu.ft.
Peak Diaphragm Displacement Volume (Vd)
67.2 cc
Mechanical Compliance of Suspension (Cms)
0.35 mm/N
BL Product (BL)
11.21 T-M
Diaphragm Mass Inc. Airload (MMs)
19 grams
Efficiency Bandwidth Product (EBP)
201
Maximum Linear Excursion (Xmax)
3.2 mm
Surface Area of Cone (Sd)
210 cm2
Maximum Mechanical Limit (Xlim)
6.9 mm
MOUNTING INFORMATION
Recommended Enclosure Volume
Sealed
3.4-9.91 liters / 0.12-0.35 cu.ft.
Vented
7.08-16.99 liters / 0.25-0.6 cu.ft.
Driver Volume Displaced
0.028 cu.ft. / 0.79 liters
Overall Diameter
8.24", 209.3 mm
Baffle Hole Diameter
7.13", 181.1 mm
Front Sealing Gasket
Yes
Rear Sealing Gasket
Yes
Mounting Holes Diameter
0.22", 5.6mm
Mounting Holes B.C.D.
7.75", 196.9mm
Depth
3.5", 88.9 mm
Net Weight
6.8 lbs, 3.08 kg
Shipping Weight
7.5 lbs, 3.4 kgs
MATERIALS OF CONSTRUCTION
Coil Construction
Copper voice coil
Coil Former
Kapton former
Magnet Composition
Ferrite magnet
Core Details
Tapered Coax
 
 
Basket Materials
Pressed steel basket
Cone Composition
Paper Cone
Cone Edge Composition
Sealed cloth cone edge
Dust Cap Composition
Zurette dust cap