EQP-500X Summing Systems The Expander function uses a

The Expander function uses a 1:2 ratio

It works by using the "remote cut-off" or re-biasing of a vacuum tube to achieve compression

Thanks to its ATL™ design

The Mastering Version of our Variable Mu® Limiter Compressor incorporating detented and logable steps built with 1% metal film resistors on sealed gold-contact Grayhill switches is available

EQP-500X Summing Systems The Expander function uses aPulse Techniques is pleased to offer the EQP 500X 500 series equalizer, the next generation of our API 2520 gain stage passive equalizers. In the early 1970s, after condensing the classic 3U model EQP 1A into the 2U form factor model EQP 1A3, Pulse introduced a solid state line amp version of the EQP 1A3. These units have exactly the same front end (input transformer and passive EQ section) but utilize a solid state opamp (genuine API 2520) gain stage