8" Woofer

Type Number:830868

Features

Discontinued. Replaced by 831868.
Driver Highlights: PPM diaphragm, 33 mm coil, AL
See Application Notes
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Specs
Electrical Data
Nominal Impedance Zn 8 ohm
Minimum Impedance Zmin 6.1 ohm
Maximum Impedance Zo 57.2 ohm
DC Resistance Re 5.5 ohm
Voice Coil Inductance Le 1.5 mH
TS Parameters
Resonance Frequency fs 32.5 Hz
Mechanical Q factor QMS 4.09
Electrical Q factor QES 0.44
Total Q factor Qts 0.4
Ratio fs/Qts F 82
Force Factor Bl 8.1 Tm
Mechanical Resistance Rms 1.28 Kg/s
Moving Mass Mms 25.6 g
Suspension Compliance Cms 0.94 mm/N
Effective cone diameter D 16.8 cm
Effective Piston Area sd 221 cm^2
Equivalent Volume Vas 63.4 ltrs
Sensitivity 2.83V/1m 90.1 dB
Ratio BL/v Re 3.5
Voice Coil and Magnet Parameters
Voice Coil Diameter 33 mm
Voice Coil Height 17 mm
Voice Coil Layers 4
Height of the Gap 6 mm
Linear Excursion +/- 5.5 mm
Diameter of Magnet 102 mm
Height of Magnet 20 mm
Weight of Magnet 0.68 Kg

Frequency

Mechanical Dimensions
Drawing Dimensions
Interior Depth ID 90 mm