- High Self-Noise: The AKG C418 has a relatively high self-noise of 16 dB. This means that it can pick up unwanted background noise, which can be a problem in quiet recording environments.
- Lack of Low-Cut Filter: The C418 lacks a built-in low-cut filter, which can be useful for reducing low-frequency rumble and noise from air conditioners, traffic, etc.
- Durability: The C418 is not known for being particularly durable, and some users have reported issues with the microphone's build quality.