BlieSMa W137P-854 (4-Ohm wiring)

The HD measurements at distance 315 mm and voltages 2.83 - 11.2 Volts were carried out with digital High Pass Filter (2nd order Butterworth type, 50 Hz cutoff, HPF2-50)

The HD measurements at distance 315 mm and voltage 16 Volts were carried out with digital High Pass Filter (2nd order Butterworth type, 80 Hz cutoff, HPF2-80)

The HD measurements at distance 20 mm and voltage 8 Volts were carried out with digital High Pass Filter (2nd order Butterworth type, 20 Hz cutoff, HPF2-20)

The HD measurements at distance 20 mm and voltage 11.2 Volts were carried out with digital High Pass Filter (2nd order Butterworth type, 30 Hz cutoff, HPF2-30)

Before taking the measurements the speaker had been very good broken-in

The detailed review of the W137P-854 speaker