FEATURES:
- 60dB of total gain
- Variable high-pass filter (20Hz – 1kHz)
- Hi-Z JFET input using a Toshiba 2SK170
- 990 discrete opamp
- Jensen transformers
- Custom-made potentiometer
- 20dB pad switch
- Polarity reverse switch
OVERVIEW:
In 1980, Deane Jensen wrote a paper in the Journal of the Audio Engineering Society that introduced his renowned 990 Discrete Opamp. Within the paper, Jensen proposed a straightforward design for a microphone preamp, which involved using a single 990 discrete opamp in conjunction with two Jensen transformers. This design was highly effective and resulted in one of the most transparent mic preamps available. Our MPF-500 is designed based on this circuit with several added features.
We use a custom-made potentiometer to achieve the smoothest gain adjustment. Also its sealed body and 2 million life cycle ensure trouble-free operation for years.
We included our variable high-pass Butterworth filter with an ultra-linear frequency response. At the recording stage, simply turn the knob to remove any unwanted low frequencies.
The Hi-Z JFET input enables the user to directly plug in their favorite instruments and run the signal through the full mic preamp circuitry, including the transformers.
Whether you need to capture the subtle nuances of acoustic instruments, amplify the raw power of electric guitars, or record crystal-clear vocals, our preamp is the go-to solution for every recording session.