Barratt Audio tells us that Equavescent3 has added to the algorithms of Equavescent including a another new proprietary windowing algorithm that increases the tightness and clarity of the sound. Here's the story in their own words... 

Equavescent algorithms improve upon traditional equalizer maths.  V3.0 impulses have less smearing on the transients, combing the clarity of an FIR with the transients of a biquad filter utilising a patent pending new windowing algorithm.

The results speak for themselves.
The algorithms remove micro modulation errors often found in digital equalizers.  These digital errors can sound ok when used in moderation to purposeful effect, but will add a digital haze which can easily ruin a mix.

Benefits of Equavescent include:

• a clear lack of digital granulation, especially in the high frequencies
• clear and tight low frequency curves
• equalized signals sound more in phase with themselves, creating a smoother analog-like transient
• the stereo image is considerably more defined when this equalizer is used on stereo sources such as whole mixes
• positioning of signals in a stereo field is far more distinct

Equavescent is a ten band parallel equalizer designed for maximum clarity of sound. 

Features are:

• resizable interface with no gimmicks, everything on the interface has a purpose
• phase shifting of individual bands
• mid-side controls for stereo
• peak and analog algorithmed relative loudness VU
• negative phase boosts shown in frequency response
• fft mode to adjust the size of the fft used
• supports up to 8 channels
• sample rate up to 192kHz
• native 32bit and 64bit Intel PC VST
• native 32bit and 64bit VST2, VST3 and Audio Unit on OS X
• MIDI control
• auto matching of volume for different Qs when in equal volume mode
• adjustable left and right frequency in graph view
• scalable gain and frequency in graph view
• control click soloing of bands
• frequency follows keyboard in the graph view
• legacy impulses to choose from

Pricing and Availability:
$100

More information:

• barratt audio