B-Stock, LAB Gruppen E 10:4 - 4-channel installation amplifier, power: 4x 250 watts 4 ohms, 4x 250 watts 8 ohms, 4x 250 watts 16 ohms, Class-D amplifier, IDEEA technology (IntelliDrive Enegry Efficient Amplifier) enables high power levels with very low distortion and minimal current consumption, RSL (Rails Sensing Limiter) for optimum audio quality and ideal load conditions on all 4 output channels, asymmetrical loading of the individual channels possible, flexible power distribution to all 4 individual channels possible, Switchable Low-Z (4/8/16 Ohm) or High-Z (70/100 V) operation per channel, switchable high-pass filter per channel, 4 terminal connections stereo for loudspeakers, dimensions (W x H x D): 483 x 44 x 381 mm, weight: 6.2 kg, B-Stock with full warranty, may have traces of use.