Audified has announced that its STA Phaser, previously part of the STA Effects commercial bundle, is now distributed for free, so that the users can experience the Audified summing tube simulations without limitations.
STA Phaser features an emulation of an analog phaser effect and a Summing Tube Amplifier (STA) which mixes the wet and dry signal and adds a nonlinear distortion resulting in a more vintage sound.
Primarily, this effect is designed to be used as an insert effect to fully exploit the summing circuit. The plugin has also a “Wet only” option when only the effected signal is processed by the tube circuit, which allows you to use the plugin also on a send bus.
https://www.youtube.com/watch/JRpqIUSKgLQ
To get STA Phaser for free, just browse to Audified.com and order your serial number.
All the STA Effects plugins are available for Windows and Mac OS X in VST 2 & 3, Audio Units, and AAX formats.
More information: Audified