Istanbul Agop Istanbul agop logo.png Type Private Industry Musical instruments Founded 1980; 38 years ago in Istanbul, Turkey Founder Agop Tomurcuk [1] Headquarters Istanbul, Turkey Key people Agop Tomurcuk, Arman Tomurcuk, Serkis Tomurcuk, Mel Lewis Products cymbals Website istanbulcymbals.com Istanbul Agop Cymbals is a cymbal producer based in Turkey. Its products are well respected for their unique sound,[2] which is formed by the method and the alloy used, the formula of which is known only to the owners of the firm, Armenians Arman and Sarkis Tomurcuk. It is one of two companies that formed after the split of Istanbul Cymbals.