Insert Audio Insert EQ Model 51 v0.1.3 is a three-band inductor equalizer with a bright character for Windows, designed for bold and musical sound correction without loss of detail.
The Model 51 EQ is an expressive three-band inductor equalizer designed for bold and musical sound shaping without sacrificing detail. With fixed frequency ranges and a carefully modeled frequency response, it is easy to use: add weight, bring a source forward, soften harshness, or open up the highs with wide, natural curves that are immediately ready for mixing.
The 51 combines measured frequency and phase response with optional band-dependent saturation, transformer coloration, and a dedicated Drive stage. Choose from the soft transformer character of the 51, the richer 51 Blue, or the more pronounced Boosted mode.
The Drive cascade adds density, second-harmonic warmth, and a smooth low-frequency contour, while 4x oversampling ensures smooth nonlinear processing. Stereo Linked, Dual Mono, and Mid/Side modes allow for use on individual tracks, as well as in bus and mastering workflows.
The Component Tolerance feature allows for small, stable differences between instances for more natural analog variability.
Three musical EQ bands. Three transformer colors. One fast and flexible path from clean signal shaping to rich analog sound.
Key Features
- Three-band inductor equalizer
- Bright, musical character
- Fixed frequency ranges with modeled frequency response
- Optional band-dependent saturation and transformer coloration
- Dedicated Drive stage
- Three transformer colors: 51, 51 Blue, and Boosted
- 4x oversampling for smooth nonlinear processing
- Stereo Linked, Dual Mono, and Mid/Side modes
- Component Tolerance for natural analog variability
- VST3 and AAX formats for Windows
Format and Compatibility
Formats: VST3, AAX for Windows.
Compatible with major DAWs including Ableton Live, Cubase, Pro Tools, FL Studio, Studio One, Reaper, and Bitwig.
File Size: 5 MB

