With a fat sound based on old Neve circuits and plenty of options for gain staging and tone shaping with impedance and loading switches, the Great River MP-500NV is one of the most versatile mic preamps available for the 500 Series format -- and it's built like an absolute tank. With an audio path, functions, and sound that is identical to its non-modular brothers (ME-1NV, MP-2NV), the MP-500NV cuts no corners even with its smaller size.