מוניטור אולפני מוגבר PreSonus Eris E5   Components and construction   5.25-inch Kevlar® low-frequency transducer 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer Front-firing acoustic port for superior bass-frequency reproduction Optimized, resonance-suppressing internal bracing 102 dB maximum continuous SPL   User controls   HF Driver Adjust (±6 dB, continuously variable) Midrange Driver Adjust (±6 dB, continuously variable) Acoustic Space settings (flat, -2, -4 dB) for accurate mixing contour Highpass filter (Off, 80 Hz, 100 Hz)   Power and safety   70 watt, Class AB biamplification RF interference, output current limiting, over-temperature, transient, and subsonic protection Amplifier “soft start” feature eliminates popping on power-up Internal power supply with IEC connector Power switch with on/off LED   Inputs and outputs   Balanced XLR/¼-inch Unbalanced RCA inputs