Available for download, the PSPAudioWare PSP E27 is an EQ plug-in designed for mixing purposes in a pro-audio context. This EQ has been modeled on the Avedis E27 analog EQ, a 500-series module that combined the best of classic British and American designs.

The EQ offers three bands, and you can tweak them in stereo, in mid-side, or independently in stereo or mid-side modes. You’ll find ±16 dB of amplitude on each band. Each band has fixed frequency points chosen for their musicality. The lows and highs can be switched from parametric bell curves to shelves.

You’ll also note a drive knob, which models the EQ’s inherent analog characteristics. Indeed, the plug-in has been coded to emulate the nonlinear behavior of the analog version. You’ll also find a secondary variant of this EQ included in the download, the PSP E27 SE. This is a simplified version, with an easy-to-use GUI. It works on both mono and stereo sources, provided you don’t need dedicated controls over the left and right channels.

This software is compatible with Mac and Windows platforms. It will operate in AU, VST, AAX, and RTAS formats. An iLok account and the iLok License Manager application are required for operating this software, though the iLok dongle itself is not required.