MD2 Pro is a stereo passive direct box that combines two transformer-isolated channels in a rugged 14-gauge steel chassis. Each input features a three-position attenuation switch (0 dB, -10 dB, -20 dB) and a Stereo/Mono sum option; Thru jacks feed the input signal to amplifiers or monitors without affecting the original signal. Balanced XLR outputs deliver clean, noise-reduced signal for keyboards, electronic drums, and acoustic-electric guitars. No phantom or battery power required.