Features
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4” voice coil Epotex former
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Ferrite magnet circuit
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Dual cone
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87.1 dB sensitivity
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Frequency range 140-20000 Hz
Specification
GENERAL SPECIFICATIONS
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Nominal Diameter: 102 mm / 4 in
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Nominal Impedance: 4 Ω
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Rated Power AES: 30 W
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Continuous Program Power: 60 W
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Sensitivity @ 1W/1m: 87.1 dB
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Voice Coil Diameter: 20 mm / 0.8 in
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Voice Coil Winding Depth: 5 mm
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Magnetic Gap Depth: 4 mm
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Flux Density: 1.10 T
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Magnet Weight: 154 g
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Net Weight: 0.4 kg
THIELE & SMALL PARAMETERS
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Re 3.0 Ω | Fs 145.0 Hz
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Qms 4.82 | Qes 1.25
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Qts 0.99 | Mms 3.3 g
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Cms 361 μm/N | Bxl 2.73 Tm
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Vas 1.0 I | Sd 44.2 cm2
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X max +/- 1.3 mm | X var +/- 3.0 mm
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η0 0.23% | Le (1KHz) 0.14 mH