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Amazon.com: Sony MDR7506 Folding Professional Closed Ear。Amazon.com: Sony MDR7506 Professional Large Diaphragm。Amazon.com: Sony MDR-7506 Professional Headphones with。Amazon.com: Sony MDR7506 Professional Large Diaphragm。シリーズ...MDRシリーズずっと使ってました動作問題なしイヤーパッドをサードパーティー製のものに変えてます