British brothers shrug convention, channel Orbison on drugs.

Dive Deep is like a mix tape, labeled “Stoner Jams.” After parting ways with original singer Skye Edwards two albums ago, British brothers Ross and Paul Godfrey continue to shirk convention by employing a number of lead vocalists, lending each track a wholly different vibe. The eleven songs share DNA—namely, the fuzzy-around-the-edges, soul-deep bass beats that are the aural equivalent of hot-boxing—but most are weak links.