AKG セミオープン型ヘッドホン スタジオモニター K240S【国内正規品】 ブラック(中古品) (中古品)AKG セミオープン型ヘッドホン スタジオモニター K240S【国内正規品】 ブラック/AKG//The K240 Studio is a long-time studio standard. Its advanced Varimotion transducers provide wide range, detail, and much higher sensitivity than comparably priced headphones. The semi-open design delivers rock-solid low end and accurate imaging. The K 240 Studio is the standard for precision listening in the studio. For over twenty years, professional engineers and musicians have made the AKG K 240 studio headphones the best selling and most