Complex sentence: However, since the first album sessions the studio was updated from 1 inch 8-track to 2 inch 16-track master tape recorders, allowing the group to have far more flexibility in overdubbing and mixing.
Split into simpler sentences: However, since the first album sessions the studio was updated from 1 inch 8-track to 2 inch 16-track master tape recorders. The new equipment allowed the group to have far more flexibility in overdubbing and mixing.