601 are breaking their relative silence since their We Do Bass album three years ago. We've had the odd appearance here and there, but this is their first proper single since. They've not lost their mojo though, far from it - "Ubad" is one of the most badass slices of laser-ghetto breaks they've ever done. "Protest Dirty" on the other hand goes into more epic territory - with ominous, rumbling bass, intense beats and incessant vocal snippets. A welcome return.