Salmo letnica. is one of the most important species of the Lake Ohrid. It is a freshwater fish that lives in cold and rich in oxygen water. Based on its biological and economic importance since 1935 in Macedonia and in Albania since 1995. https://www.roneverhart.com/Turbosound-TS-18SW700-8A-18-Low-Frequency-Loudspeaker-p31480/