# Factory test checklist — CAMS-1 Serial: __________ Date: __________ Tech: __________ ## Visual - [ ] No cabinet gaps / finish defects - [ ] Drivers flush; grille fits - [ ] Labels present (mains warning, serial) - [ ] Stand welds clean; powder coat OK ## Electrical (dummy loads first) - [ ] Earth continuity IEC earth → chassis < 0.1 Ω - [ ] Insulation / hipot per local procedure (if required) - [ ] Power-up current inrush OK (breaker doesn’t trip) - [ ] Mute delay ~0.5–1.5 s both channels - [ ] DC offset mid < 50 mV; HF < 50 mV ## Audio - [ ] 1 kHz mid @ 1 W: no buzz/rattle - [ ] 5 kHz HF @ 0.5 W: clean - [ ] Polarity: mid & HF same absolute polarity (pulse test) - [ ] Sweep 100 Hz–15 kHz: no rub/buzz - [ ] FR spot: ±3 dB 200 Hz–10 kHz on-axis (gated or nearfield+splice) - [ ] THD @ 1 kHz mid 5 W < 0.1% typical (soundcard + attenuator — see `/measurement`) ## Thermal - [ ] 1 hour pink noise −10 dBFS equiv / speech shaped: heatsink touch-safe / < 75 °C ## Stand - [ ] Height lock holds 25 kg - [ ] Speaker mounts true vertical - [ ] Safety strap eye present ## Sign-off Pass / Fail: ______ Notes: _______________________________