The Heco Phon 3 is a compact 3-way speaker manufactured by Heco in Germany during the years 1981 to 1982. It features a black or walnut finish and has dimensions of 270 x 430 x 216 mm, weighing 7.5 kg. The speaker is equipped with a 200 mm low-frequency driver, a 25 mm midrange dome, and a 19 mm dome tweeter. It has a power handling capacity of 60 watts nominal and 100 watts music, with an impedance of 4 ohms. The frequency response ranges from 30 Hz to 25 kHz, with transitional ranges at 1,000 Hz and 3,000 Hz. The original price of the Phon 3 was approximately 250 DM per piece.
