tan justito lo ves? a ver, me refiero, vengo de un subwoofer que venia en un equipo 5.1 (Onkyo SKS HT648):

Bass-ReflexInput sensitivity/impedance 410 mV / 20 kΩRated output Power (IEC) 80 watts minimum continuous power, 4 ohms, driven at 100 Hz with a maximum total harmonic distortion of 1%Frequency response 27 Hz to 150 HzCabinet capacity 24.5 LDimensions (W × H × D) 230 mm × 425 mm × 412 mm(incl. grille and projection)Weight 9.1 kgDrivers unit 20 cm Cone Woofer × 1Power supply (HTP-648) AC 230V, 50Hz(SKS-HT648) AC 220-240V, 50/60 HzPower consumption 105 WOther Auto Standby functionNon-magnetic shieldin

a mejor seguro que voy...