Alpha+ M210 Hybrid Horn Loaded System 2x10" MF / 4x3" HFThe two way M210 active Main module uses two lightweight pure MF neodymium 10 drivers horn loaded, and coaxially mounted with four 3 neodymium compression drivers mounted on an innovative articulated waveguide. Using a custom made 15 mm plywood cabinet of Birch and Poplar with a rounded shape to prevent damage in the corners, the M210 weighs in at 53kg 117lbs and achieves a peak SPL of 148dB. The mid frequency horn ensures maximum radiating surface