Technical Specifications
- Nominal Basket Diameter: 8", 200 mm
- Nominal Impedance: 8O
- Power Rating: 400 Watts
- Resonance: 78 Hz
- Usable Frequency Range: 78Hz-7kHz
- Sensitivity: 91 dB
- Magnet Weight: 30 OZ.
- Gap Height: 0.24", 6 mm
- Voice Coil Diameter: 1.5", 38 mm
Thiele & Small Parameters
- Resonant Frequency (fs): 78 Hz
- DC Resistance (Re): 5.1O
- Coil Inductance (Le): 0.44m H
- Mechanical Q (Qms): 5.95
- Electromagnetic Q (Qes): 0.76
- Total Q (Qts): 0.68
- Compliance Equivalent Volume (Vas): 14.3 liters / 0.52 cu.ft.
- Peak Diaphragm Displacement Volume (Vd): 30.4 cc
- Mechanical Compliance of Suspension (Cms): 0.208 mm/N
- BL Product (BL): 8.1 T-M
- Diaphragm Mass Inc. Airload (MMs): 19 grams
- Efficiency Bandwidth Product (EBP): 105
- Maximum Linear Excursion (Xmax): 2 mm
- Surface Area of Cone (Sd): 216.4 cm2
- Maximum Mechanical Limit (Xlim): 6 mm
Mounting Information
Recommended Enclosure Volume
- Sealed: N/a
- Vented: Acceptable
- Driver Volume Displaced: 0.054 cu.ft. / 1.55 liters
- Overall Diameter: 8.3", 210mm
- Baffle Hole Diameter: 7.24", 184 mm
- Front Sealing Gasket: Yes
- Rear Sealing Gasket: Yes
- Mounting Holes Diameter: 0.2*0.34?, 5.2*8.6mm
- Mounting Holes B.C.D.: 7.87", 200mm
- Depth: 4.01", 102mm
- Net Weight: 4.86 lbs, 2.2 kg
- Shipping Weight: 5.17 lbs, 2.34 kgs
Materials of Construction
- Coil Construction: Copper voice coil
- Coil Former: Polyimide former
- Magnet Composition: Ferrite magnet
- Core Details: Vented core
- Basket Materials: Pressed steel basket
- Cone Composition: Treated paper cone
- Cone Edge Composition: Sealed cloth cone edge
- Dust Cap Composition: Treated paper dust cap