These are awesome speakers in a small floor standing tower package. Although the bass drivers are only 4.5 inches wide they produce the most accurate reproduction of low frequency instruments such as bass guitar and baritone voice. The small stiff carbon bass drivers enable them to keep up with the extremely fast folded ribbon tweeter engineered by Michael Borresen, giving an effortless and distortion free output of any music content, especially singing voices. Give them a good quality tube, solid state, class D amplification source of at least 50 watts RMS and they will sing like songbirds. They are in excellent condition with original floor mounts, box, and cloth. Very easy assembly and set up.