LD Systems Curv 500 IAMP, 4-Channel Class-D Power Amplifier, Especially suitable for CURV 500 installations, 4 x 240 W at 4 ohms, 4 x 120 W at 8 ohms, 4 x 60 W at 16 ohms, Frequency range: 10 - 22,000 Hz, Each channel can control up to six CURV-500 satellites or one CURV500ISUB subwoofer, OLED display, Protection circuits: DC, short circuit, over-current, soft start, thermal overload, Inputs: 4 x Line, terminal block, XLR, 4 Speaker outputs, Dimensions (W x H x D): 482 x 44 x 420 mm, Weight 6.8 kg, Format: 19"" / 1 U