MacProVideo.com has released "Reason 203: REX & FX," a Propellerhead tutorial video program demonstrating how to create REX files and add Reason's built-in DSP effects. More than just a quick tour, the tutorial demonstrates the "how" and "why" of using Reason's DSP effects. Users learn how dynamic range compression works, and see why it is best applied to beats, guitar, and other sounds to make them cut through the mix. The video also offers in-depth coverage of vocoding, phasing, flanging, delay, and reverb. Reason 203: REX & FX is available via direct download as well as DVD for $40 (coupon code for 10 percent off: reason103-pmnn).