Active DI box. Both battery or 48 V-phantom power operation possible. Active circuitry allows for high input impedance (1 MΩ) and higher input sensitivity (typical difference between in and out -4 dB). Maximum output impedance with phantom power operation +10 dBu. Output: transformer balanced. The special “floating ground” circuitry enables ground lift even during phantom power operation. Metal case 110 x 73 x 42 mm.