Behringer Ultra-DI DI400P Professional High-Performance Passive DI-Box N/A Professional and multi-purpose 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-2 transformer Allows direct connection to speaker outputs with up to 3,000 Watts Ground Lift switch eliminates typical ground loop problems