Three-way, four-driver, floorstanding loudspeaker with vented enclosure. Drive-units: 63.5 by 10mmribbon tweeter; 100mm coated pulp-cone midrange unit; two 160mm magnesium-cone woofers with alnico magnets. Frequency range: 25Hz–100kHz. Sensitivity: 87dB/2.83V/m. Impedance: 8 ohms nominal, 4 ohms minimum. Dimensions: 1154mm H by 295mm W by 346mm D (all with plinth). Weight: 43.2kg.