Ed Grochowski's Website

Phono 2 Preamplifier



This is the matching phono preamplifier to go along with the Stereo 4 amplifier. The circuit topology is similar. The preamplifier is direct coupled from input to output. It features passive RIAA equalization with the unique feature that the equalization network is driven by a current source. I designed and built this preamplifier in 2001.