Esto no es correcto, compi. Las 3020i no tienen un cono de 4", sino de 5". Si has pillado la información de la web de Supersonido, está mal. Llevan un cono de 125mm (5"):
https://www.qacoustics.co.uk/q3000i-...f-speaker.html
Enclosure type: 2-way reflex
Bass Unit: 125 mm (5 in)
Treble Unit: 22 mm (0.9 in)
Frequency Response (+3 dB, -6 dB): 64 Hz – 30 kHz
Nominal Impedance: 6 Ω
Minimum Impedance: 4 Ω
Sensitivity (2.83 Vrms@1 m): 88 dB
Stereo Amplifier Power: 25 - 75w
AV Receiver (2 ch. driven): 50 - 75w
Crossover Frequency: 2.4kHz
Effective Volume: 6.1 L (372 cu in)
Dimensions H/W/D: 278 x 170 x 282 mm (11.0 x 6.7 x 11.1 in)
Weight (per speaker): 10.59 lbs / (4.8 kg) per speaker