Until May 25, Audified's STA Effects and STA Preamp can be purchased with 50% discount:
The bundle includes STA Preamp, Enhancer, Delay, Chorus, Flanger and Phaser. Each of the set of 6 valve simulating plug-ins offer 5 types of saturation. Summing Tube Amplifier (STA) uses two signal paths. One is processed by modulation or spectral change and the other is not processed. These two signals are mixed on a vacuum tube.