Jbl Sub 550P - 300 Watt 10 Home Audio Subwoofer W Built In Amp Frequency Response: 27Hz-150Hz Power Supply: Power Supply: Our items come with the standard USA power supply and do not support other region power supply inputs without a power supply adapter. We do not supply regional power supply adapters. If customers purchase our products and intend to use them outside the US then it is their responsibility to obtain a power adapter for that region.