The sounds in the Blofeld are straight-up analog modeling. This really emulates old synths very well and the organization of the patches is really easy to understand. The keyboard it self is about the size of an Oxygen 49, the chassis is heavy duty, the finish is quite nice as well. I really like the fact that you can see the animated filters in action on the screen. Arps are good, sound quality is good as well. This is not really your typical synth, but if you are wanting your tracks to have a more vintage vibe with futuristic capabilites then the Blofeld is right for you. Its not a Virus, its not a Korg RADIAS. If I were to explain or categorize the sound of the Blofeld I would put it in the same ballpark as the Prophet '08, Arturia Origin, Microkorg, and Korg MS2000. Waldorf basically emulated all of the best classic synths and put them in one box.