This mic preamp project comes from an article written by in 1998 Paul Stamler for Recording Magazine.  In the article, Stamler gave instructions for building the solid-state, transformer-balanced mic preamp he used to do microphone tests for the magazine.  The preamp is dual-gain-stage, IC-based design with a bypassable 3-band equalizer.

Image courtesy of Recording Magazine

Notable Features:

• Jensen input transformer
• Minimal use of capacitors in the signal path
• Runs on +/-21.5V rails
• Power supply design included
• EQ section consists of high and low shelving filters and mid-range filter fixed at 1.8kHz

Price: no products available

See the original Recording Magazine article for more information.