Invert blocks can be used to reverse the polarity(180° phase shift) of the audio signals that are passing through them.
The initialization dialog provides several options:

| Name | Description |
| Gang Controls | Allows all of the channels within the Level block to be adjusted simultaneously from a single set of controls. Level blocks with a “G” in the upper-right corner of the block are ganged. |
| Align channels horizontally | Changes the orientation of the invert buttons when the control dialog window is minimized. |
| Hide labels | Removes channel labels when the control dialog window is minimized. |


| Name | Description | Range |
| Invert | adjusts the polarity of the input signal. | 0° or 180° |
| Identifier | User adjustable text label. |
Control Dialog Boxes for Invert components can be minimized to create user control surfaces (see Customizing Component Objects ).