The Retro Pack HD Bundle v5 from McDSP contains 3 plug-ins designed to impart a "vintage" character on any audio source. It consists of an EQ, compressor and a limiter that are only available via this bundle. All 3 plug-ins use an output stage topology designed by the company to eliminate digital clipping at any output level and produce a smoother distortion characteristic. This feature is in addition to the analog saturation modeling.
The 4020 Retro EQ is a 4-band EQ and filter set. The high-frequency (HF) and low-frequency (LF) bands are shelving EQ, with two additional high-mid and low-mid frequency parametric EQ bands. All EQ bands operate on a gain dependent variable Q system for a vintage smooth sound. The HF and LF filters use a split-octave design that provides a 12dB/octave slope near the selected frequency, with a maximum slope of 24dB/octave.
The 4030 Retro Compressor features a dynamic range control topology coupled with a wet/dry mix control to balance compressed and uncompressed signals. An active attack and release design allows aggressive compression settings with minimal artifact generation. The 4040 Retro Limiter combines a look-ahead brick wall limiter function with several subjective treatments to make the limiting action subtle yet vintage.
The v5 HD plug-in bundle provides TDM functioning for Pro Tool HD, but also includes an Audio Units version for use with DAWs that support the format, including Logic, Digital Performer (DP) and Ableton Live. Additionally, a third party software application that supports the TDM, RTAS, or AudioSuite plug-in standard can also be used.