Changes

The way you have to test this all out is by using a completely clean tone. If there's any distortion, you have to turn down one device at a time to locate the source of the clipping. Many times you want a distorted tone, which can mask unwanted clipping and make it difficult to tell where it is in the signal chain. You have to listen with a very careful ear, or substitute distortion for a clean tone of approximately the same volume level.

Let's look at an example signal chain: