Does the tape mod really help?
Two layers of painter's tape on the back of the PCB, measured on two cases.
The tape mod is cheap and reversible, which makes it the first thing to try.
| Case | Before | After |
|---|---|---|
| Aluminium | Hollow, ringing | Noticeably deeper |
| Plastic | Muffled | Barely different |
It takes ten minutes. On metal cases it is worth it; on plastic, skip it.