THE ULTRA-DI PRO DI4800A gives you 4 first-class DI channels in a single rack space. Each channel is equipped with one input (XLR or ¼” TRS) and two XLR Outputs at the front and back to connect to your amp or monitor console allowing for 8 outputs in all. Plus, the DI4800A is designed to accommodate virtually any input signal, with a switchable output attenuation of -20 dB, while our highly acclaimed OT-1 output transformers ensure pristine and powerful output. Features: Professional and multi-purpose 4-channel direct injection box for stage and studio applications Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers Ultra-flat frequency response due to renowned Behringer OT-1 transformers Total of +18 dB gain boost in three +6 dB increments for pre-amplification of low-level signals Ground Lift switch eliminates typical ground loop problems Switchable -20 dB output attenuation Neutrik* combo and gold-plated XLR connectors Powered via external DC power supply (included) with optional battery powered operation (sold separately)