ART Dualxdirect, Active Dual DI Box, Can be operated via phantom power or 9V battery, The incoming signal via the high-impedance, unbalanced jack and balanced XLR connectors is converted into an isolated, balanced and low-impedance signal, Ground-lift switch, Frequency response: 10 Hz - 100 kHz, ± 0.5 dB @ 0 dBu,, Dynamic capture:> 100 dB (typical), Channel separation:> 80 dB (typical), Max. Input Level: 4, 34 dBu, Max. Output level: 6 dBu (with battery operated), 14 dBu (powered by phantom power), Inputs: 1/4 ""TRS XLR female balanced / unbalanced (2), 470k ohms, Parallel bushing: 1/4 ""TRS (2), Outputs: XLR male balanced. (2), <600 Ohm, Input attenuation: Switchable, (0, -30 dB), Power supply: 9V @ 7.5mA (battery, alkaline), 18 - 48V DC @ 6.4mA (phantom power per channel), Dimensions (WxDxH): 99 x 117 x 47 mm, Weight: 0.38 kg