| Device | Parts cost | Difficulty | |
|---|---|---|---|
| Separate devices | |||
| 1046$ | |||
| RN84 class-A mic preamp with EQ | 1235$ | ||
| 4-channel frame modules | |||
 |
266$ | ||
 |
73EQ passive equalizer module (requires 1290 module) | 293$ | |
 |
312 type mic preamp module | 256$ | |
 |
1176 compressor module | 360$ | |
 |
PYE compressor module | 358$ | |
 |
12413 zener compressor module | 392$ | |
| 60$ | |||