זוג מוניטורים אולפניים PreSonus Eris E4.5   4.5″ Woofer with Kevlar diaphragm 1″ Tweeter with silk dome Frequency range: 70 – 20,000 Hz Gain control Input impedance: 10 kOhm MF control: Peak EQ, 1 kHz, +/- 6 dB HF control: Shelving filter, 4.5 kHz, +/- 6 dB Switchable high-pass filter: 80 Hz / 100 Hz Acoustic Space switch: -2 dB, -4 dB Two integrated 25 Watt Class-AB amplifiers in the left speaker Crossover frequency: 2.8 kHz Max SPL @ 1 m: 100 dB Front panel on / off switch Volume control and headphone jack, stereo mini jack Inputs: TRS (balanced), RCA pair and stereo mini jack (unbalanced) Shielded from HF interference Turn on/off transient Output current limiter Overheating, transient and subsonic protection circuits Dimensions (W x D x H): 163 x 180 x 241 mm Weight: 3.7 kg left speaker with amplifiers, 2.2 kg right satellite speaker Including: 2 Monitors (1 Pair), connection cable from the left to the right box, connection cable Stereo mini-jack to 2x RCA (L / R) and connection cable stereo mini jack to stereo mini jack, 8 self-adhesive foam pads