Insert vs Send
Definition
Two fundamental signal routing approaches in mixing. An insert places a processor directly in the signal path, the entire signal passes through it and returns processed. A send routes a portion of the signal to a shared effects processor, blending the processed return with the original dry signal.
In Simple Terms
Two ways to connect an effect. An insert puts the effect directly on the track, like a compressor that processes every sound passing through. A send shares one effect across many tracks, like one reverb that makes everything sound like the same room.
In Practice
A compressor is typically inserted directly on a channel (the entire signal must be compressed). A reverb is typically used on a send/return (multiple channels share one reverb at different blend levels).
Common Confusion
Using a reverb as an insert and setting it to 100% wet is technically possible but eliminates the dry signal and prevents multiple channels from sharing the same acoustic space efficiently.
Sources & Verification
- Izhaki, R.. Mixing Audio (3rd ed., signal routing chapters)Focal Press, 2017
- Owsinski, B.. The Mixing Engineer's Handbook (4th ed.)Bobby Owsinski Media Group, 2017
Last verified: 2026-05-05