Studio Mic-Preamp P48 Phantom Resistor-Match CMRR, Coupling-Cap Pop & EIN Noise Solver

Deterministic Balanced bridge impedance-unbalance common-to-differential conversion CMRR_eff = 20*log10((R_p48 + R_in_cm) / Delta_R_p48) + Johnson-Nyquist source-referred EIN (150-ohm 20kHz BW) engine (.json, .sp, .csv) built for THAT Corporation (1510/1580), Texas Instruments (INA217/PGA2500), Neumann, Neutrik — zero-upload ephemeral Wasm RAM execution.