MTR Active DI box

Input: ¼" mono jack
Output link: ¼" mono jack
Main output: balanced XLR3M (600 Ohms)
Attenuation: 0dB, -20dB, -40dB switchable
Ground: on, floating or lift switchable
Power: 9V alkaline or external 9V DC or 9 - 52V phantom power
Battery low LED indicator