HITMAKER 4000 80's E-Series Console Colour royalty The main difficulty lay in

The main difficulty lay in finding a gold standard to measure against

so you can cut at one frequency and boost at another

manufacturing tolerances were much looser in those days

DOA Colour Assembly Guide

One of the signature features of these consoles was its powerful yet musical 4-band EQ

HITMAKER 4000 80's E-Series Console Colour royalty The main difficulty lay inHITMAKER 4000 brings solid state British console sound to the Colour format. This circuit was inspired by the classic VCA console's Mix Amps through which thousands of hit records have been mixed since the early 1980's. The heart of the famed mix bus was a balanced summing architecture with a hybrid combination of a discrete quad matched transistor input and a then state of the art Signetics NE5534A op amp to provide open loop gain and load driving