The Dynaudio P31 is a 3-way aperiodic loudspeaker produced from 1977 to 1979 in Denmark. It features a woofer, midrange driver, and tweeter configuration, with a 210 mm Seas woofer, a 54 mm midrange driver, and a 28 mm tweeter. The speaker has a frequency response of 35 Hz to 30 kHz and handles a po...