Audes Llc. SW U4
Image source — © Audes Llc.
Model name
SW U4
Frequency Response low +/- 3dB (Hz)
40
Frequency Response high +/- 3dB (Hz)
120
Sensitivity (dB at 1 W/1m)
N/A
Impedance (Ohms)
N/A
Has internal amplification
Yes
Power amplifier requirements (W)
225
Size (sm)
46.1 × 32.5 × 44.3
Weight (kg)
24
Official link
Perhaps he was referring to the SW U2, an active subwoofer with deep bass from the manufacturer Audes. It has an output power of 120 watts with an impedance of 6 ohms.