B&C Zvučnik 5NDL38 : B&C 5NDL38 5" 90W 8 Ohm Loudspeaker Driver With over 60 years of industry experience, B&C Speakers has designed and built thousands of unique transducers. Each year, our sales and engineering departments work together to develop a comprehensive catalogue. While this catalogue reflects the large majority of our technologies, it is primarily designed to feature some of our more recent additions to the product range. Specifications: Nominal diameter 5.0" Nominal impedance 8 ohms Minimum impedance 6.3 ohms Nominal power handling: 90W Continuous power handling: 180W Sensitivity (1W/1m) 91.0 dB Frequency range 80 - 7000Hz Voice coil diameter 38 mm (1.5 in) Winding material Aluminium Former material Glass Fibre Winding depth 10 mm (0.37 in) Magnetic gap depth 6 mm (0.24 in) Flux density 1.25 T Design: Surround shape Roll Cone shape Exponential Magnet material Neodymium Ring Spider Single Pole design Straight Pole Woofer cone treatment WP Waterproof Front Side Recommended enclosure 5.0 litres Recommended tuning 80 Hz Parameters: Fs 80 Hz Re 5.5 ohms Qes 0.37 Qms 9.2 Qts 0.36 Vas 4.3 litres Sd 95.0 cm sq η₀ 0.55 % Xmax 3.5 mm Xvar 4.0 mm Mms 11 g Bl 9.2 Txm Le 0.64 mH EBP 216 Hz Mounting And Shipping Info: Overall diameter 150 mm Bolt circle diameter 142 mm Baffle cutout diameter 122.0 mm Depth 75 mm Flange and gasket thickness 9 mm Air volume occupied by driver 0.35 litres Net weight 0.85kg Shipping weight 1.1 kg Shipping box 221x214x130mm