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COMPARISON TABLE
model
PureLow caracteristics and curves
Type
​
Planar subwoofer
(no cabinet)
Planar subwoofer
(no cabinet)
Flat from 10Hz to 400 Hz
​
Bandwidth
​
Flat from 10Hz to 400 Hz
​
Sensitivity
​
90dB / 1 watt 10 Hz
measured at 1 meter
90 dB / 1 Watt at 12 Hz
measured at 1 meter
Power capability
​
400 Watts, without thermal compression
400 Watts, without thermal compression
Flat 2,5 Ohm load on the whole bandwidth
Impedance
​
Flat 4 Ohm load on the whole bandwidth
Radiating Area
​
1 square meter
​
0,74 square meter
​
Membrane weight
​
3,5 grammes/dm square
​
3,5 grammes/dm square
​
+/- 9,5 mm with driving coil staying in magnetic field
Driver excursion
​
+/- 9,5 mm with driving coil staying in magnetic field
Volume of displaced air
​
+/- 7 Litres
​
+/- 5 Litres
​
Dimensions (WxHxD)
​
126 x 126 x 12 cm
​
126 x 99 x 12 cm
​
105 kG
​
Weight
​
130 kG
​
Impedance curve
Impedance
Stable 2,5 Ohms
Stable 4 Ohms
Resonant frequency Fs
12,79 Hz
8,74 Hz
Impedance at Fs
8 Ohms
9 Ohms
Phase rotation
Almost zero phase rotation on the audio range
Almost zero phase rotation on the audio range
Response curve
Measured in room and Hand made curve with Bruel & Kjaer sonometer model 2230 at 1 meter of the loudspeaker
Frequency range
5Hz to 400 Hz
10Hz to 400 Hz
Power
1W RMS ( 2 volts RMS at loudspeaker inputs)
1W RMS (1,61 volts RMS at loudspeaker inputs)
Measured level
91dB +/- 2dB from 9,5 to 46Hz
90 dB +/- 2,5 dB from 10 to 75 Hz
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