Restoration VPI's  -  PlaybackEQ

The PlaybackEQ VPI precisely emulates the analogue circuits of 20 different playback equalizer transfer functions, including RIAA/CCIR, all the different NAB and IEC curves, and numerous others.

Standard VPI preset functions facilitate switching between the various curves in a simple and intuitive user interface. The crossover frequencies can be edited, which facilitates modifications and/or creation of new presets. Additionally, 'inverting' the playback curve allows one to generate the various original pre-emphasis transfer functions that would have been used for cutting records and other media.

Apart from the obvious, there are numerous additional applications for the 'Playback-EQ'. Have you ever wondered if a tape was transferred using CCIR EQ when the NAB curve really should have been used? Do you have some "safety" masters in your archives that were incorrectly identified and copied as RIAA when they were actually flat?

In the past, these have not been easy to check/correct in the digital domain, because no digital EQ was able to accurately reproduce the playback curve characteristics of the analogue pre-amps that have been used at the time. The PlaybackEQ VPI now makes this possible, through amazingly accurate modeling of the original playback equalizer transfer functions.