SPEAKER SOUND GENERATORS HSB1818A-4 15.0 15.0 4.7 18.0 ø1.0 13.0 18.0 9±0.5 dB 90 Dimension 80 Unit : mm Tolerance : ±0.3mm JL World 70 60 100 200 300 500 1K 2K 3K 5K 10K Hz 20K Frequency Response Normalized to 1W Input Power and 0.3m Measuring Distance Specification (all data taken at 25°C unless otherwise specified) Coil Impedance (W) Rated Power (W) 4 ± 15% 2 HSB1818A-4 Maximum Input Power (W) Resonance Frequency (Hz) HFrequency Range (Hz) Hsound Output at 1kHz (dB) Operating Temperature (°C) Storage Temperature (°C) 2.5 520 ± 20% 520 ~ 20000 84 ± 3 -20 ~ +65 -20 ~ +70 The specification are only for 4W version. Specification for other impedance is available upon request. Hvalue normalized to 1W input power and 0.3m measuring distance. www.jlworld.com