LB DL-A 2.4 DSC AlArray Active stereo speaker pair with beam steering and DSP 4 x 1" High-Array + 4 x 2,5" Mid-Array + 4 x 2,5" Bass + 4 x 2,5" Passive, 2 x 500 watts, frequency range 48...20.000 Hz, Auto-On, external power supply, dimensions (W x H x D)