High quality sound High Input & Wide Frequency Range Driver Folding Swing Arms More features High quality sound The RP-DJ1200 is designed to deliver clear, high-quality sound even at very high volumes. High Input & Wide Frequency Range Driver Driver units: 41mm (1 5/8in.) diameter. Frequency response: 8Hz - 30kHz. Folding Swing Arms The RP-DJ1200 can easily fold into multiple configurations for standard use, one-sided monitoring and storage. More features Carrying pouch included