808 Band-Split

INTERNAL fragment (Stage 4 F5) — the 808 processor: split into a CLEAN sub band (low-pass, kept pure) ∥ a DRIVEN harmonic band (high-pass → saturation → hard-clip, so the fundamental survives on small speakers), summed + returned. Audio-through parallel aux. Macros: Drive (harmonic saturation + clip), Sub (clean low level), Click (harmonic-band level).

Signal chain