With its ferrofluid-cooled aluminium dome neodymium tweeter derived from the Reference series, the coincidental source 165 mm (6 1/2”) UNI-Q driver array creates a spatial and beautiful sound image throughout the room, the bass display is tight, and accurately arranged to maintain the clarity of the middle tones. KEF’s unique reinforcement system increases the rigidity of the cabinet to minimise distortion, and the advanced crossovers are directly connected to the bi-wire terminals for optimal signal integrity. These Q3 series are lovely to listen to, especially the clarity is sublime. They give you the feeling of being inside the studio with the artist during recording and in a (concert) hall. They also have a lovely low end. The speaker is in excellent condition! System type: Two-way, standing Housing type: Reflex Dimensions (H x W x D) 780 x 240 x 320 mm (30.7 x 9.4 x 12.6 inches) Weight: 11.5 kg (25.3 lbs) Nominal impedance: 8 ohms Amplifier requirements: 15-120W Frequency range: 42Hz to 27kHz +/- 3.0dB Sensitivity: 91 dB on 1 m for 2.83 V Maximum output: 111 dB The photos are part of the description.