Hi;
My name is Tahsin Sevgel, and I have worked as a mechanical engineer in the past. After that, i developed and manufacture several ciems (warbler audio prelude and RevoStage products). 

Even Prelude known in audiophiles, RevoStage products dominate local pro audio market.

After, warbler and RevoStage days, i founded my own brand Tahsin Sevgel Audio Devices. I developed my own products based on maximising all efficiencies with fancy ideas.