WARM AUDIO DI-A is a single-channel active/passive D.I. box with CineMag USA Custom Output transformer, Unbalanced Input via 6.3 mm Jack with Thru and Amp Out/Instrument selector, phase inversion selector, Ground Lift selector, variable attenuation pad adjustable via Encoder between -30dB/-3dB with On/Off selector, Active/Passive mode selector, balanced output via XLR. It works with 2 9v batteries, +48v Phantom power or
in passive mode.