LINE vs MIC Inputs: Understanding the Difference

LINE and MIC inputs serve different purposes in audio equipment:

• MIC inputs: Designed for low-level signals from microphones (-60 to -40 dBV)
• LINE inputs: Built for high-level signals from devices like phones, keyboards, or audio interfaces (+4 dBu or -10 dBV)

Can You Connect a Microphone to LINE Input?

Yes, but the signal will be extremely quiet and unusable without amplification. You'll need a preamp to boost the microphone signal to line level.

Can You Connect Line-Level Devices to MIC Input?

Yes, but the signal will be too hot and likely distort. Use a DI box (Direct Input) or attenuator to reduce the signal to microphone level.

Solutions for Mismatched Connections

For Microphones → LINE Input:

• Use a microphone preamp
• Use an audio interface with built-in preamps

For Line-Level → MIC Input:

• Use a DI box
• Use an inline attenuator pad
• Lower the output volume on the source device

Quick Reference

For best results, always match your device to the appropriate input type.