🎤 Sealed-Box Driver Selection

ℹ️ About: Ranks bass drivers for a sealed enclosure from first-principles excursion, Doppler and thermal-power limits at your room and target SPL, assuming half-space (soffit-wall) radiation and a single fixed listening position. A sub (mono manifold) covers the band up to the split frequency; an attack driver (stereo tower, L+R) covers up to the top frequency — the two are ranked independently, then you pick one of each. Target SPL is a per-driver level, separately configurable for each role (default 115 dB sub / 105 dB attack, matching THX reference-level peak calibration: LFE channel 10 dB hotter than the mains): the sub's manifold units and the attack driver's two stereo channels are both correlated/common-signal, so they add coherently at the couch (+20 log₁₀ N, N = units × channels) — e.g. one attack channel at 105 dB plus its stereo twin gives 111 dB at the couch for mono-panned content. Thermal/power headroom, unlike the acoustic sum, never crosses channels: each physical driver still only ever dissipates its own channel's power. 1342 drivers loaded from the bundled VituixCAD database (537 rows skipped for missing data). Room pressure-zone corner f_pz = 28.6 Hz for the current room settings.