Audio enthusiasts and DIY speaker builders, take note! This is a high-quality Audyn-Cap Q4 MKP film capacitor. It's a 1.00 microfarad (µF), 400-volt axial lead capacitor, part of their premium Q4 series. The part number is 270400-0010 (manufacturer number 1341859). These capacitors are renowned for their excellent sound characteristics - very low dielectric absorption and distortion, making them ideal for critical audio applications like speaker crossovers, tube amp coupling, or hi-fi signal paths. It's brand new, made in Germany by Intertechnik, and comes with a solid 2-year warranty. If you're upgrading a crossover network or building a high-end audio project, using quality components like this Audyn-Cap makes a real, audible difference. Ditch the cheap electrolytics and experience clearer, more accurate sound. A must-have for the serious audiophile tinkerer.