Size（WxDxH）：145mm x 165mm x 750mm
Construction：12mm MDF (18mm front baffle) Front ported 2 way bass reflex with 3.5kHz X-over via a 3 element single Pole filter
Nominal impedance：4 Ohms – with a minimum of 3.9 Ohms
Frequency range：60Hz-20kHz +/- 6dB in room on axis at 1M
Recommended amplifiers：25-75W on unclipped program into 8 Ohms.
Sensitivity：88dB – 1W (2.83V RMS) at 1 metre