Diora Acoustics is a Polish loudspeaker maker with four series, each built around a different driver or cabinet idea. The Perun speakers are horn designs whose sound stays consistent across the horn's dispersion, which reduces the influence of placement and room acoustics. The Lada series uses isodynamic drivers that cover almost the whole frequency range. The Chors models put ceramic drivers in sealed cabinets, and the Polaris speakers use passive radiators for controlled, efficient bass. Polaris buyers can choose from six finishes, including black or white piano gloss and open-pore walnut or oak.