# CAMS-1 KiCad schematics (PCB-ready)

Same style as `lm3886-poweramp/kicad` + `active-crossover/kicad` (hierarchical sheets).

| File | Board / block |
|------|----------------|
| [`cams1_root.kicad_sch`](cams1_root.kicad_sch) | Root — wire input → XO → dual amps |
| [`cams1_input_psu.kicad_sch`](cams1_input_psu.kicad_sch) | Balanced RX + PSU notes |
| [`cams1_xo_2500.kicad_sch`](cams1_xo_2500.kicad_sch) | **Double** LP + **double** HP @ 2.5 kHz (OPA2134) |
| [`cams1_amp_mid.kicad_sch`](cams1_amp_mid.kicad_sch) | LM3886 mid (full Zobel/Thiele/mute) |
| [`cams1_amp_hf.kicad_sch`](cams1_amp_hf.kicad_sch) | LM3886 HF + −6 dB pad |

## Components

- Full list with MPNs: [`../electronics/COMPONENTS_COMPLETE.csv`](../electronics/COMPONENTS_COMPLETE.csv)  
- PCB rules: [`../electronics/pcb/PCB_DESIGN_NOTES.md`](../electronics/pcb/PCB_DESIGN_NOTES.md)  
- SPICE: [`../spice/cams1_full_chain.cir`](../spice/cams1_full_chain.cir)

## Open in KiCad

1. KiCad 8 → open `cams1_root.kicad_sch`  
2. Enter hierarchical sheets to edit  
3. Assign footprints → PCB New → layout Gerbers  

You can also copy `../../active-crossover/kicad/sk_lowpass_stage.kicad_sch` / `sk_highpass_stage.kicad_sch` and set the 2.5 kHz values (3k / 15n / 30n and 6.8n / 6.8k / 13.6k).
