Based on the award winning BlueMax compressor design, the COMP16 is the simplest professional quality compressor in the world. Sixteen presets have been carefully tailored for a wide range of applications including vocals, percussion, fretted instruments, keyboards, stereo program material and compression effects. Simply select the preset and adjust the input and output to desired level of compression. Finally a great-sounding compressor that anyone can use! I started reading about Presonus vs. Protools in reviews on the web. Everything I read said how Presonus blows Protools away until you get to the high-end HD Protool product. Then and only then is it comparable to Presonus. I used Protools for the last ten years and was reluctent to switch to Presonus. I absolutely love it. I highly recomend the Presonus software StudioOne Pro. Everything you need is all on one page. Drag and drop your EQ's and Effects right to the track. It is the most user friendly program out there. It also comes with a Mastering Program. If you want to make PRO QUALITY recordings at a great bargin you awe it to yourself to check out Presonus Audio.