מוניטור מוגבר אולפני PreSonus R80   2-way monitor with “Air Motion” ribbon tweeter 100/50 Watt Class D power amplifiers (LF / HF) 8″ woofer with kevlar membrane Specially developed  tweeter with very thin Kapton membrane (<0.01 mm) Tweeter surface: 4.4 cm², equivalent to a 3 "dome Transmission range: 40-22000 Hz Crossover frequency: 2.6 kHz Input sensitivity infinitely variable via gain potentiometer Switchable height adjustment: linear / +1 / +3 / +6 dB Switchable high-pass filter: linear / 60/80/100 Hz Acoustic space switch for bass correction: linear / -1.5 / -3 / -6 dB Boundary sound pressure level: 107 dB Inputs: XLR, 1/4 "jack (balanced), RCA (unbalanced) Input impedance: 20 kOhm (balanced), 10 kOhm (unbalanced) Shielded against RF interference ON / OFF Output current limiter Overheat, transient and subsonic protection circuit Energy-saving auto-standby mode - can be deactivated if required Housing: vinyl-coated thomann MDF Blue front panel can be exchanged for the included black panel depending on your taste Weight: 9 kg Dimensions: 241 x 309 x 379 mm [embed width="640" height="360"]https://www.youtube.com/watch?v=eIYgZfOhHKE[/embed]