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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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