Channel Groups

What Are Channel Groups?

Channel groups let you organize your amplifier's output channels into logical volume zones. For example, you might group your front speakers into one zone and your subwoofer into another, so each can be controlled independently from the knob.

For a full explanation of channel groups, relative mapping, and deployment examples, see Channel Groups and Multi-Unit Control.

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Opening Channel Groups

1. Connect to your WVC in the AuralSync app.
2. Tap the gear icon to open device settings.
3. Scroll to the Channel Groups tab.

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Setting the Number of Groups

The app does not have a 'group count' field. Instead, tap Add Group at the bottom of the tab to create a new group, and use the Delete Group button inside an empty group's expanded card to remove one. Practical maximum on the RTC is 23 groups (the RTC's hard cap); the app does not enforce its own limit beyond what the device accepts.

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Naming Groups

Each group can be given a custom name up to 10 characters, for example "Front", "Sub", "Rear", or "Fill".

1. Tap a group name field.
2. Type your desired name.
3. The name syncs automatically to all connected devices when you save. It appears on the knob display, the RTC screen, and in the app.

Groups without a custom name display as "Group 1", "Group 2", etc.

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Assigning Channels to Groups

Each group card lists the channels currently assigned to it. To move a channel between groups:

1. Tap a group card to expand it.
2. Find the channel row (labeled with the source unit, e.g. "WVC-PRO 1AB2 - Ch 3").
3. Tap the swap-arrows icon on the right side of the row.
4. Pick the destination group from the list. If the move leaves the source group empty, the app offers a one-tap "Delete" shortcut via snackbar.

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Adjusting Per-Channel Gain

Each channel has an adjustable gain from 0 dB to +31.5 dB in 0.5 dB steps. This lets you boost the output level of individual channels within a group, useful for balancing channels that feed different amplifiers or for driving an amp that needs a stronger input signal. Tap the dB value under any channel row to open a gain slider. The slider dialog shows the resulting output for a 1 Vrms input (for example, +6.0 dB displays as '1.0v in = 2.00v out') so you can compare against the input voltage you measured.

Important: Gain can drive the RCA outputs to voltages that exceed the rated input of most car amplifiers and can permanently damage equipment if set incorrectly. For the safety warning, the gain calculator, the dB math, the boost curves at different source voltages, and the required DMM-measurement procedure before reconnecting to amplifiers, see RCA Gain. Do not increase per-channel gain without reading that article.

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Per-Group Volume Display

When you have two or more channel groups configured, the app's monitoring screen displays a separate volume level for each group. This lets you see at a glance how each zone is set, for example your front speakers at 60% and your subwoofer at 45%.

With a single group (the default), only one volume level is shown.

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Relative Mapping

Each group can be set to one of two modes:

• Standalone: volume is fully independent of all other groups.
• Relative to [Group]: volume moves proportionally to a parent group.

For example, if your subwoofer group is set to "Relative to Front," turning down the front volume automatically reduces the subwoofer volume proportionally.

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Saving Changes

When you're done editing:

• Save: sends the configuration to the base station, which distributes it to all connected devices (knobs, RTC units, and mesh peers). Unused groups are automatically removed.
• Discard: reverts all changes without sending anything to the device.

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