Principle: 2-way ported HF driver: 27mm silk dome tweeter. Ferrofluid-cooled. LF driver: 22cm LMF-driver with hand-coated paper cone. The diaphragm has an optimized NAWI (non-developable) profile. Impedance: 8 ohms Sensitivity: 89dB/1m/2,85V Frequency response: 38Hz – 27kHz (-3dB), 100Hz – 20kHz (+/- 2dB) Power handling: 140W Crossover frequency: 2,3kHz Characteristic: 12 - 24 dB Transitional filter, DC module Dimensions: 315 x 500 x 270 mm (WxHxD) weight: 18 kg