VK rep Jacob Schneider talks about the Electrodyne 501 Preamp & 511 EQ 500 Series modules from Pete's Place. The Electrodyne 501 is a two-stage, discrete transistor, transformer-coupled preamp with active DI based primarily on the modules found in the classic 1608 console. The 511 is a classic two-band, discrete transistor, reciprocal, active inductor-based equalizer using late-'60s/early-'70s design technology. Both the 501 and the 511 have custom inductors and output transformer are made by Electrodyne's original provider to strict factory tolerances as small as two percent.
Learn more here: http://vintageking.com/catalogsearch/result/index/?condition=189&q=electrodyne