Professional and multi-purpose direct injection box for stage and studio applications. Authentic 4 x 12" speaker emulation by renowned amp designer Jurgen Rath. 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 transformer. Internal battery automatically shuts off when phantom power is applied. Allows direct connection to speaker outputs with up to 3,000 Watts. Switchable input attenuation allows input levels of up to +50 dB. Ground Lift switch eliminates typical ground loop problems ?“ TRS and gold-plated XLR connectors. Ultra-rugged, road-suitable aluminum case. Stackable oversized rubber corners.