As of Not Ashamed, the next three Newsboys albums were produced by Steve Taylor, who gave the albums a definite sound and feel, much smoother than earlier albums.
It's fascinating watching the transition of album trends throughout Not Ashamed, Going Public, and Take Me To Your Leader, as the group seems to grow more cynical in direction.
Not, mind you, cynicism against God, but rather against other Christians, and Christian attitudes toward God.
As of Step Up to the Microphone, Pete Furler began doing the production for the albums. Step Up... is somewhat colder than the earlier albums, but the most recent album, Love Liberty Disco is a very warm return, if very influenced by disco musically.
Much as The Newsboys seem to have found a niche in terms of sound, much as many Christian artists do, they do it very well, which is more than can be said of many musical groups.