Product Overview 2403 260 00091 11x15x3.5 mm COBRA Features: Multi-magnet system; reduced magnetical stray field reduces dust attraction 6 Ohms enable 1 Watt even with standard 2.45 Volt(RMS) chipsets Unique Knowles silicone membrane providing highest robustness High power handling capacity even in high ambient temperature Pre-loaded springs for mechanical robustness and easy handling IPx7 waterproof (tested in 1m water for 30 min.) version available (2403 260 00132) Impedance 6 Sensitivity * 74 Air pumping capacity 81 Typical backvolume 1 Total volume 1.57 f0 (typical backvolume) 850 Nominal power ** 1000 SPL Max *** 94 Max sine power (≥ 1kHz) 1000 Max sine power (< 1kHz) 700 Frequency Response Ohms dB (W/m) mm³ cm³ cm³ Hz mW dB mW mW 105 35 1000 mW 100 30 95 25 90 20 700 mW 85 15 80 10 75 5 70 0 100 Footnotes: *) average value measured in baffle at 1W/1m **) using shaped noise signal according to product data sheet ***) average value measured in baffle in 0,1 meter distance at max sine power (2-6kHz), in typical backvolume THD [%] Specifications: SPL [dB rel 20uPa] - SPEAKER 1000 SPL f [Hz] THD 10000 measured in IEC baffle at max sine power (700mW < 1kHz, 1000mW ≥ 1kHz) in 10 cm distance with 1ccm back cavity Knowles Sound Solutions April 26 2013