Preamp Card Array
AssemblyEight identical plug-in cards, each housing a transformer-coupled low-noise preamplifier with 0–70 dB gain, pad switch, and phantom power control. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Preamp Card Array
8 top-level lines as of r46818| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Hot-Swap Preamp PCB | digital-stage-box-preamp-card | 8× | 8 | · | part |
| 2 | Input Isolation Transformer | digital-stage-box-input-transformer | 8× | 8 | · | part |
| 3 | Preamp Operational Amplifier | digital-stage-box-preamp-opamp | 8× | 8 | · | part |
| 4 | Gain Potentiometer | digital-stage-box-gain-pot | 8× | 8 | · | part |
| 5 | Pad Switch | digital-stage-box-pad-switch | 8× | 8 | · | part |
| 6 | Phantom Power Relay | digital-stage-box-phantom-relay | 8× | 8 | · | part |
| 7 | SMD Passive (R/C/L) | smd-passives | 8× | 8 | · | part |
| 8 | Connector | connector | 8× | 8 | · | part |