The acoustic information carried by the signal of a device is modulated by the power flowing through the circuit. The initial loss at the input is invariant as it is never recovered. Consequently, the design materials will add their acquired character on top of incomplete data, forming a contrive. The fuse, the first supply material, absolutely and decisively imposes its management on the device, and nothing replaces its primary effect on the signal. It is not an enhancement accessory, and anything after it will contribute little and only ancillary in a very minuscule way. The fuse delivers a specially calibrated signal to the power supply, depending on the role of the device. It maximizes the collection of the original information and remodels it in a very concentrated way with scalable calibration of the acoustic parameters. It quantitatively partitions features and supervises the exponential growth of individual gain to prevent energy transfer in isolated spectral bands. Ensures the inviolable noise threshold that allows data to pass through at high transparency. Pros: Saving on exotic circuit materials and maximum design efficiency. Protection from failures in cable selection and individual links in the chain. Clear explanation of the character of the device, without alterations. Not imposing its aesthetic. Does not require adaptation to the new hearing. Does not lead to changes for its acceptance. It will reliably guide the completion of a successful personal system.