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JLB (Ing. Jordanow KG, Heidelberg) appears to be a German engineering company or audio brand based in Heidelberg, as indicated by the German company structure designation 'KG' (Kommanditgesellschaft) and the engineering title 'Ing.' (Ingenieur). The company name suggests it was founded or operated by an engineer named Jordanow and was based in the historic German city of Heidelberg. However, extensive research has not revealed current business operations, website presence, or accessible company information in the audio industry. The engineering designation suggests the company may have been involved in technical audio equipment design or manufacturing, but without verifiable documentation or current market activity, the specific product focus, operational timeline, and current status remain unclear. JLB (Ing. Jordanow KG) is presumed to be defunct or inactive in today's audio market, with no traceable current business activities or product offerings.