Livewire ADI Active DI Direct Box It provides a 1/4" high-impedance input and throughput, balanced XLR output, ground lift switch, and 0/-20/-40dB attenuation switches Powered by 9V battery or 48V phantom power Heavy-duty, all-steel chassis with rubber skid pad The Live Wire ADI Active DI Direct Box offers you 1/4" high impedance input and throughput, balanced XLR output Ground lift switch, 0/-20/-40dB attenuation switches