Presonus R65, Active Studio Monitor, 2-Way monitor with ""Air Motion"" ribbon tweeter, 100/50 W Class-D amplifiers (LF / HF), 6.5"" Woofer with Kevlar membrane, Custom designed tweeter with very thin Kapton membrane (<0.01 mm), Tweeter size: 4.4 cm², corresponding to 3"" dome, Frequency response: 45 - 22000 Hz, Crossover frequency: 2.7 kHz, Input sensitivity adjustable continuously via gain potentiometer, Level control for tweeter: linear / +1 / +3 / +6 dB, Switchable high-pass filter: linear / 60 / 80 / 100 Hz, Acoustic space switch to bass correction: linear / -1.5 / -3 / -6 dB, SPL: 104 dB, Inputs: XLR, 6.3 mm jack (balanced), RCA (unbalanced), Input impedance: 20 kOhm (balanced), 10 kOhm (unbalanced), Shielded against RF interference, On/off delay, Output current limiting, Overheating, transient and subsonic protection circuit, Energy-saving auto-standby mode - can be deactivated if necessary, Housing: vinyl coated MDF, Blue front panel can be replaced with a black panel, depending on taste, Weight: 6.4 kg, Dimensions: 203 x 261 x 328 mm