The MP-400 is a 48 volt phantom power, compact, two-channel measurement microphone pre-amplifier system. It is perfectly suited to two channel, computer based acoustical analysis systems. This preamp features microphone and line level inputs, positive step-gain selection switch for repeatable measurements, built-in pink noise generator, all in a laptop sized rugged metal chassis. The MP-400 provides the inputs, Mic preamps, and switching to make accurate acoustical measurements with your analyzer software.

Particularly noteworthy are the outputs and inputs of the AudioControl Industrial MP-400 which allow looping out and back in. This is very useful for including a processor, like an equalizer, in the measurement system signal path. The MP-400 also has an output and a test input on the front of the units for convenient use as well as analog inputs designed for use with USB-type input devices. This is a complete, well researched, high quality system for microphones and signal switching.

• This Product has been Discontinued.
• Two Channel Microphone Preamplifier / Switcher
• Complete Input and Output Switching Flexibility
• 48 Volt Phantom Mike Power Supply
• Balanced Input Microphone circuitry
• Step Gain Switching in 10 dB Steps for Repeatable Measurements
• Infinitely Variable Gain for Channel Matching
• Inputs and Outputs on Both Front and Rear of Unit
• Loop Through Connections to Eliminate “Y” Cords
• Signal Presence and Clipping Indicator LEDs
• Lab-Quality Digital Pink Noise Generator
• External Power Transformer for Superior Low-Noise Performance
• Compact, Laptop Sized at 11” X 8.5” X 1.5”

"The MP-400's configurability, portability and measurement quality circuitry make it an excellent choice for the Smaart user on the go."
Jamie Anderson, SIA Smaart,

“Exceptionally high quality audio”
Don Pearson Ultrasound