The paper presents an extended analysis of the structure of the hydrogen atom spectral lines, based on the concept of superresonance — a phenomenon in which all Lyman, Balmer, Paschen and Brackett resonances (for n ≤ 7 and m ≤ 4) exhibit complete harmonic relations with respect to the λu2080 wave.The frequency values form a discrete raster with a constant spacing of approximately 18.64 GHz. The results indicate the existence of a universal harmonic structure in the hydrogen spectrum, opening new possibilities in spectroscopy and the theory of atomic interactions.Based on this, the concept of a subquantum (sQ) was introduced, defined as the smallest unit of photon energy with a value of εu2080 ≈ 7.71 × 10u207bu2075 eV, equal to 1/3969 of the H(5→4) transition energy. This unit allows the construction of a resonance grid in which all analyzed transitions are arranged in integer multiples of the fundamental frequency.The proposed approach suggests that the hydrogen spectrum is governed by a simple harmonic system, extending the classical Bohr—Rydberg model with a deeper level of discretization. This method reduces measurement uncertainties and opens up new possibilities for precise spectroscopic calibration, enabling not only the description of known transitions but also the prediction of previously unobserved line parameters.