Brandenburg appeared on the group's second LP "Faithful Friends" (1969). This LP had higher production values than their first and contained many of the songs that were part of their live act. Their third album, "Reflections" (1970), was actually recorded prior to Faithful Friends and was a collaboration with Greek composer Manos Hadjidakis on the score for a film that was never produced. Rhythm guitarist Brian Corrigan departed after the third album and after being part of the only movie appearance by the group, "Zachariah".
The band then shortened its name to The New York Rock Ensemble and switched to Columbia Records. Roll Over (1971) was their most overtly rock album and, at that time, their biggest seller. Their album Freedomburger (1972) was an uneven collection of songs. Soon after the tour supporting this album the band dispersed. Kamen, joined by Rudnytsky and other musicians, gave it one last try when they released New York Rock in 1973.