RapcoHorizon DB1 Passive Direct BoxThe DB 1's simple design offers reliable input jacks as well as a loop through 1 4 inch jack. Plug any instrument level signal (and some line level) into the box, interface with a standard XLR mic cable into the Lo Z output, and you're ready to plug the output "directly" into a mixing console. A ground lift switch is provided for buzz free operation in almost any environment.