AR 9LS (Acoustic Research) loudspeakers.The original Teledyne manufactured, legendary speakers.40 Year old legends.For the real hi fi stereo, audio lover.Will need good amplification (at least 150 watts rms, high current)In really pristine 9/10 original condition. (absolute rare find in this condition)One beast of a speaker with bass response down to 18Hz!One front firing 12 inch bass driver and one 10 inch down firing bass driver.One 8 inch mid/bass driver.Dual dome mid/high range drivers.Impedance – 4 Ohm54 kg each.Height – 1.3m. Pics of the real thing.