The Quadral Platinum 620 is a floorstanding speaker that belongs to the Platinum series produced by Quadral between approximately 2003 and 2007, with production phased out by 2008. This speaker features a stylish design available in silver lacquered finish or real wood veneer in cherry and maple options. It has a robust construction with dimensions measuring 888 mm in height, 210 mm in width, and 289 mm in depth, and it weighs 16.8 kg. The speaker is designed as a 3-way bass reflex system and is equipped with one 180 mm aluminum woofer, one 180 mm aluminum midrange driver, and a 25 mm dome tweeter, providing a full range of sound. The power handling capacity is rated at 120 watts nominal and 180 watts music power, with an efficiency of 89 dB/1W/1m. It covers a frequency response range of 40 Hz to 24 kHz and has an impedance rating that fluctuates between 4 to 8 Ohm. The crossover points are set at 300 Hz and 2,500 Hz. As the largest model in the standard Quadral series, it is positioned below the AURUM series and is accompanied by other models in the Platinum line, including Platinum 120, Platinum 220, Platinum 420, Platinum 620, Platinum 820, and Platinum BASE.
