# System Groups

System groups define the linked components of your system and help Performance to set up common, expected rules around how parameters should be linked, controlled and displayed. Once system groups are defined they need to be populated with Speakers.

Within Performance two types of System Groups exist; one for full range arrays of speakers and one for arrays of distributed subwoofers. The functionality for each System Group type has been optimized for the specific speaker type intended to populate it. For this reason each System Group type can only be used with the specific speaker type intended.

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## Array System Group

Array System Groups are used for full-range systems that are used together in arrays. Line arrays are the primary use case for the Array System Group. When creating an array group we first define the quantity of arrays in the group. In a typical stereo sound system, we would create a new System Group with 2 arrays. This number in the System Group can be changed later in Properties. The software will group various controls, enable or disable specific features and functions that are available, and even recall a default speaker preset based on what goes into the array container.

### Array Symmetry Options

When a new Array System Group is added to the workspace, a pop up will present the available Array Symmetry Options. Any parameter checked here will be linked between all Arrays in the Group. Making a change to any of the linked parameters will effect all other members of that Group equally. Array Symmetry Options can be adjusted later in the Properties panel.

- Array Calibration Controls - Filters like Array Size Compensation and Throw Distance Compensation defined within the Calibration View.

- Gain Controls - Gain values of the individual devices between arrays in a Group defined in the Gain View.

- Delay Controls - Delay values of the individual devices between arrays in a Group defined in the Delay View.

## Subwoofer System Group

Similar to Array System Groups, Subwoofer Array System Groups are empty containers meant to be populated with a quantity of Subwoofer devices from the Speakers section. Subwoofer Array System Groups link device parameters like gain and delay in user definable patterns that make controlling groups of Subwoofer devices quick and easy.

### Subwoofer Array Options

When a new Subwoofer Array System Group is added to the workspace, an options pop up will present options for that Subwoofer Group, these optiosn can be changed later in the Group Properties.

#### Orientation

Defines whether the Subwoofers in each container will be orientated in a column or a row.

#### Symmetry

Defines how parameters are linked between each Subwoofer Array. Two symmetry options exist for Subwoofer Arrays

- OFF - DSP Parameters are NOT linked between any Subwoofer Array in the Group

- Inside Out - DSP Parameters are linked between Subwoofer Arrays within a Group in an inside out pattern. (Example Below)

#### Link Hardware Configurations

When selected, all Arrays in a System Group will be populated with identical quantity, orientation and product type. If this check box is de-selected, each Subwoofer Array is free to be filled with a unique product configuration with respect to the symmetry options selected above. For example in a 5 Array system group if the Symmetry mode selected is Inside Out, and the Link Hardware Configuration option is de-selected, the System Group can be populated with three separate hardware configurations given the Symmetry links between Arrays.