Enclosure not stated · 4 knobs
MI Audio Crunch BoxVerified
Based on the MI Audio Crunch Box· 9 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, MI Audio
From the post
Got several requests for this one. The MI Audio Crunch Box is a versatile distortion box, designed to sound like a cranked Marshall. It's very similar to the Marshall Guv'nor, but with a Rat style tone control. Production models have the Presence control as a trimmer internally, but it makes sense to me to have it externally.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 20 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×2 | 22K | 22k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | LM833 | LM833 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | C10K | C10k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Presence | B20K | B20k | Potentiometer | read from the layout by eye |
| LEDs 2 | ||||
| D1 | 5mm LED | 5MM LED | read from the layout by eye | |
| D2 | 5mm LED | 5MM LED | read from the layout by eye | |
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