The DI-1 is a high-quality direct box with crystal-clear sound for transforming high-impedance, unbalanced instrument outputs to the low-impedance, balanced inputs of a mixing console. 

• Active direct box with superior frequency responce to conventional transformers
• Operates on a 9-volt battery or phantom power from a mixer
• Phase reversal and ground lifting switches
• Three input level switches
• Sturdy, compact design