October 2024: Fractal Audio's VP4 Virtual Pedalboard has been added to the wiki.
Send and Return blocks
Contents
Available on which products
- Axe-Fx III: 2 pairs
- FM9: 2 pairs
- FM3: 2 pairs
- Axe-Fx II: 1 pair
- FX8: no
- AX8: no
Channels or X/Y
- Axe-Fx III and FM9 and FM3: no
- Axe-Fx II: no
Use Send/Return to extend the signal chain on the grid
You can use Feedback Send/Return to connect the signal chain on the grid from one row to another. The Owner's Manual explains how this works.
Use Send/Return to send Input 2 to Output 2 on the Axe-Fx II
Feedback Send and Return can be used to enhance the effects loop (FXL) on the Axe-Fx II.
By itself, FX Loop allows:
- a signal from Input 2 to enter the grid.
- sending a signal through Output 2.
By placing FXL between Feedback Return and Feedback Send, you can accomplish both: send input from Input 2 to Output 2. Read this: FX Loop block
Use Send/Return to create a feedback loop
Search the Factory presets page for "delay feedback loop" to see an example preset.
Parameters
Axe-Fx II – Both blocks have parameters that need configuring. In most cases, you'll want Send to feed the Return block only, NOT to pass the signal to the next block. So Send Level (which feeds Return) has to be at 100% and Output Level (which sends the signal to the next grid block) stays at zero. In this case, the Return block's Mix parameter (which receives the signal from Send) should be 100% and Return Level (which sends the signal to the next grid block) is 0 dB.
Axe-Fx III, FM9, FM3 – Feedback Send does not have any parameters to set. The signal to Feedback Return can be controlled with Mix in the Feedback Return block. And if the signal is passed to the next block and needs adjustment, there are other tools to accomplish that, such as a Volume block.
The Return block's Level defaults to 0.
"The reason the default level for the Return Block is 0 is probably so that when you insert it, you don't need to fear screaming feedback. The way it is, you can turn it up to make sure you haven't created a bad feedback loop." [1]
"It's a safety thing to prevent unwanted feedback loops." [2]
