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Acoustic Chromatic Aberration In optics, chromatic aberration — the wavelength-dependent focal shift caused by material dispersion — was identified by Newton (1666) and corrected by the achromatic doublet (Hall, 1733). We propose that an analogous design problem exists in acoustics: the frequency-dependent variation in radiation geometry produced by finite-aperture sound sources, which we term acoustic chromatic aberration. The problem This inconsistency arises from the ka-dependent relationship between aperture size and wavelength and may contribute to a frequency-dependent change in the apparent spatial organization of the reproduced sound field. While individual aspects of this problem — beaming, directivity mismatch, phase center shift, and crossover lobing — are well documented, they have not previously been unified under a single conceptual framework. What this paper offers A unifying conceptual framework that relates these disparate phenomena as manifestations of a broader frequency-dependent radiation inconsistency, structurally analogous to optical chromatic aberration. A heuristic engineering metric — the wavefront curvature mismatch index (𝒲) — to quantify the inter-driver component of this inconsistency across a crossover band. An illustrative comparison across five loudspeaker topologies (full-range, coaxial, tractrix horn, waveguide-matched, conventional 2-way) using a first-order analytical model. A conceptual correction direction: frequency-selective phase correction via acoustic metasurfaces — the acoustic equivalent of fluorite or ED glass elements in optical systems. Scope The framework is offered as a cross-disciplinary perspective intended to motivate quantitative investigation, not as a claim of new physical discovery. Existing loudspeaker topologies (full-range, coaxial, omnidirectional, CD horn, line array) are situated as different empirical responses to a related family of frequency-dependent radiation-consistency problems. Keywords acoustic chromatic aberration · wavefront curvature · directivity dispersion · acoustic metasurface · phase center · loudspeaker design · sound reinforcement · dispersion compensation