Monkey Banana Turbo 4 red, Active Nearfield Monitor, Woofer: 4 inch magnetically shielded polypropylene / ceramic membrane, Tweeter: 1 inch silk dome, Frequency range: 60 Hz - 30 kHz, High frequency level: -6 dB / +6 dB variable at 10 kHz, Low frequency level: -6 dB / +6 dB variable at 100 Hz, Frequency