This Visaton K50 8 Ohm 2" (5 cm) miniature speaker features a plastic diaphragm and metal basket. Thanks to its compact dimensions, it is suitable for applications where size and form factor are critical: flat panel HDTVs, computer desktop or laptop speakers, entryway and room intercom systems, DIY audio players, point-of-purchase displays, etc. Additionally, you can combine multiples of this mini speaker for a line array. Features Plastic: Mylar diaphragm Functionally according to EN 60068-2-1/EN 50155 Metal frame UV-resistant. Specifications Rated power: 2 W Maximum power: 3 W Nominal impedance Z: 8 Ohm Frequency response: 250–10000 Hz Mean sound pressure level: 83 dB (1 W/1 m) Opening angle: (-6 dB) 180°/4000 Hz Excursion limit: +/−0.5 mm Resonance frequency fs: 400 Hz Height of front pole-plate: 2 mm Voice coil diameter: 14 mm Height of winding: 3 mm Cutout diameter: 45 mm Net weight: 0.05 kg Connections: Solder lugs Protective system: IP 65 * Temperature range: −40 to 80 °C * IP protection class for the front side when built into a sealed enclosure