DnB splits the bass into a mono sub-bass and a mid-frequency reese-bass occupying different bands

DnB bass has two layers on the same root note: a clean sine sub-bass for the deep fundamental (kept mono for translation) and a detuned, phasing reese-bass carrying the aggressive midrange growl. These must occupy different frequency bands to avoid masking — sub below ~80–100 Hz, reese working in the 80–500 Hz range with its spectral content above the sub. Failing to separate them produces a muddy low end that loses both the sub punch and the reese texture. The sub must stay mono for phase coherence on speaker systems; the reese may be wide. This split is a practical application of frequency budgeting to a specific genre context.

Examples

Strudel: one voice with s("sine").note("e2") (sub, mono, no effects) plus a second voice with detuned supersaw + .lpf(600).lpq(8) (reese) on the same root note.

Assessment

Draw (or describe) the frequency spectrum of a correct DnB bass split, labeling which range the sub occupies, which range the reese occupies, and what goes wrong if they overlap.