The 4020 Retro EQ HD from McDSP 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 plug-in uses an output stage topology designed by the company to eliminate digital clipping at any output level and produce a smoother distortion characteristic.
The HD plug-in 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.
- Unique original algorithms with transparent yet vintage sound
- Variable slope filtering
- Variable Q/slope shelving and parametric EQ
- Anti-Clip output stage topology
- Analog Saturation Modeling
- Double precision processing
- Ultra low latency
- Mono and stereo versions