Download Frohmage:

Filter with saturation drive

The Frohmage VST plugin by Ohmforce is a highly resonant low-pass filter effect. It features a tone control making it possible to tune the the filter to resonate with specific notes, a multi-band effect giving the signal more analog warmth, an overdrive unit, and a delay filter effect giving the sound a phaser- / flanger-like character. Great sound quality and a lot of fun! (You need to register with a valid e-mail address in order to download the free Frohmage plugin...)