Millennia HV-3D 4 channel solid state micpreamp, high end, complete bal. signalpath, 23 dB input & 32 dB output headroom, goldcontact connectors and switches, stereosignal matched to 0,04db, options: BRÜEL & KJÆR (DPA) +130V Mic inputs and"DC inputs" specially for ribbonmics, 19", 2u