Speakers in perfect condition. Only some signs of use. I will send them in two different boxes. They are very heavy and this will make transport easier. Top range direct/reflected sound. Boxes formed by 9 full range 4’’ 1/2 speakers with 3 air columns per box. It has the BOSE 901 series III active equalizer. Impedance: 8 Ohm Power: Compatible with 10-450 W amplifiers Finish: Wenge Dimensions: (53.5 Al x 32.4 An x 32.4 F cm) The 901 is the flagship of Bose’s direct/reflecting technology. Each speaker keeps inside nine full-range drivers in a layout that directs the sound throughout the room. This system of sound dispersion, not reached by any other manufacturer, provides a stereo image that differs very little of the physical presence in a concert. Speakers disappear as focal points, and only the sounds remains. In exchange, the speakers need to work with the BOSE 901 Series III active equalizer. This balances the change in the frequency range as the sounds reflects off walls.