No audio equipment manufacturer specifically named 'Dolphin Kabel' or 'Dolphin Cable' could be identified through comprehensive research. Multiple searches for German audio cable manufacturers with variations of 'Dolphin' in the name returned no results. While several companies named 'Dolphin' exist in various industries (including Dolphin Interconnect Solutions in Norway specializing in server communication technology, and Dolphin Semiconductor in France for mixed-signal IP solutions), none are dedicated audio cable manufacturers. The absence of search results for 'Dolphin Kabel' as an audio interconnect cable company suggests this may be a misidentified brand name, an extremely niche manufacturer with minimal online presence, or a company that is no longer in operation. Without additional identifying information, comprehensive business intelligence cannot be provided for this entity.