Power RMS / max. P 300 / 600 Watts Impedance z 2 x 2 Ω / 1 x 4 Ω / 1 x 1 Ω Max. linear excursion Xmax +/- 8.0 mm Port tuning frequency Fb 43 Hz Sensitivity 1 W / 1 m SPL 86 dB Dimensions (H x W x D) 184 x 310 x 285 mm / 7.2 x 12.2 x 11.2” Recommended DSP settings Recommended ″self-define″ highpass filter with 44 Hz cut-off frequency and Q = 1.6 additional EQ filter 115 Hz / Q = 0.9 / -3.5 dB