M-SERIES 250mm HIGH EFFICIENCY Subwoofer
impedance: 2×2 Ohm
RMS POWER 2x 200/150 Watt
2″ voice coil
gold plated terminals
multiple ventilation system
improved T-Joke construction
HPP cone (high pressed paper cone)
PPTA connex spider
pole piece hole
very stable steelbasket in varnish finish
reinforced dustcap
LLE (Long Life Edge)
https://en.audio-system.de/wp-content/uploads/2023/09/Manual-M10-EVO2.pdf