The Heco Superior 550 Cantata II is a 3-way bass reflex floorstanding speaker, manufactured by Heco around 1990 in Germany. It features a design that incorporates a bi-amping terminal and velvet covered front to minimize early reflections. The speaker is available in several finishes, including black ash, walnut, oak, and a special white ash version. It has dimensions of 850 mm in height, 240 mm in width, and 270 mm in depth, weighing approximately 15 kg. The Superior 550 Cantata II is equipped with a pair of 175 mm polypropylene cone woofers serving as both the woofer and bass-midrange driver, along with a 19 mm aluminum dome tweeter. The speaker has a nominal power handling of 110 W and a peak music handling capability of 150 W. With an efficiency rating of 88 dB, it produces a frequency response range from 29 Hz to 35,000 Hz. The crossover frequencies are set at 120 Hz and 3000 Hz, and it operates at an impedance of 4 Ohms.
