The MP-500NV is a professional quality microphone preamplifier designed to re-create the vintage sound characteristics of the early 1970s large consoles. Modern components give the MP-500NV more clarity, punch and performance under normal use. In addition, features like metering before and after the major gain stages let the user drive it 'creatively' to greatly expand the range of sonic options. Any microphone will benefit from the power of the MP-500NV preamplifier, including dynamics, condensers and ribbon types. The MP-500NV uses the same audio and metering circuitry found in the NV series preamplifiers. This unit is designed to fit into a '500' series rack using 2 available slots. It receives its power supply from the host rack. The unit is equipped with a HI-Z instrument jack that has its own input amplifier and was designed for 'DI' applications. All specifications and performance details are identical to the NV series preamplifiers with the exception of size, weight, patch jack, -10dBv Out.

The MP-500NV has been tested and accepted into the VPR Alliance.

•  I/O connections: XLR balanced; high-Z input on front panel (disconnects mic input)
•  Adjustable gain stages: input in 5db steps to 60db; output from -25 to +10db; maximum overall gain 70db; 2 to 3 stages of single ended solid state amplifier gain blocks, depending on gain structure; high-current 70ma Class A bias on output stage
•  Input and output meters on each channel (dual-stage metering is a Great River exclusive)
•  Front panel switches: polarity; phantom power; input impedance (1200 / 300 ohm); output loading (600 ohm resistor across output transformer)
•  High quality, custom wound Sowter transformers
•  Gold plated switching contacts
•  3 year warranty with registration
•  Mounts in 2 spaces in a '500' rack