The KRK Rokit 8 G4 is a pair of 8-inch powered studio monitors. It has a frequency range of 36Hz-40kHz and a maximum peak SPL of 111dB. It also has a DSP-driven Graphic EQ with 25 settings to help condition your acoustic environment. The KRK Rokit 8 G4 is a bi-amped professional monitor that takes music and sound creativity to a whole new industry-level.