The Pioneer CDJ Guidebook: A Comparison & History of CDJs and XDJs
Compare Pioneer CDJ models, see Pioneer CDJ history, decide which CDJ or XDJ model is right for you, and learn about the concepts behind Pioneer DJ and the Rekordbox ecosystem. Get specs on all CDJs, check pricing, and see reviews on Pioneer DJ gear. Get answers to questions like, "which CDJs have USB"?
Source: passionatedj.com