Here's some schematics and information that can be hard to find elsewhere. If you have some schematics that you think belongs among these, please do not hesitate to contact me.
Apr 01, 2016 The legend of the Sontec 432. Created by the coinventor of the parametric EQ Burgess Macneal. According to him, units since being introduced in the late 60s early 70s, have been used on more hit records than any other outboard mastering EQ. The Sontec MEP250EX is the modernized version of Burgess MacNeal's classic MEP250C parametric EQ design. One of the first fully parametric EQ's and still one of the best sounding and most versatile. The little brother of the extremel Master EQ 432 is the latest addition to the TRackS Custom Shop series of mixing and mastering plugins, emulating the MES432C an early design by Sontec, and one of the original parametric EQs.
Feb 20, 2014 NEW Master EQ 432 in TRackS Custom Shop! The holy grail of mastering equalizers! Hardware Sontec 432c EQ vs TRacks 432 eq mastering plugins Find great deals on eBay for sontec. Shop with confidence. The Master EQ432 module is based on the Sontec transformerless, solidstate mastering equaliser. It uses switched EQ frequencies, with five switched Q values per band; the three parametric bands have very little interaction with each other.
Mar 12, 2013 The ITISontec EQ was the creation of George Massenburg& Burgess Macneal and parts are still available through Burgess Macneal. Unlike the new Sontecs this one is fault free, well built, reliable and contains the original circuit, opamps& components.
Sontecs mastering equalizers were among the first parametric EQs manufactured and are considered some of the most musical of all time. I. J. Research has released DIY kits for stereo and 8channel versions of the Sontec, with a stepped, mastering version in the works.