This record presents a research-in-progress framework for modeling cable-related degradation in audio systems. The project integrates cable physics, interface loading, amplifier behavior, time-domain DSP approximation, and perceptual-facing analysis metrics in a single simulation and listening framework. The current contribution is intentionally limited and practical. The model can already reproduce clearly degraded behavior under extreme conditions, such as long or degraded RCA runs and very long speaker-cable runs. At the same time, it does not claim to fully explain all reported cable-audibility impressions. Subtler experiences reported by the author, including veil, treble sheen, extension, soundstage change, and increased density, are not yet reproduced under fully convincing conditions and remain subjects for further study. This record includes English and Japanese manuscript PDFs for the current preprint stage of the project. The source code is available on GitHub, and an interactive Streamlit demo is publicly available. GitHub: https://github.com/moe-charm/audio-chain-physics Live demo: https://audio-chain-physics.streamlit.app/