LF Audio | Help Center

Knob Guide

basic

Overview

The WVC wireless encoder knob is the handheld controller that communicates with your base unit. It is available in multiple variants and supports up to six weeks of battery life between charges. This guide covers knob operation, controls, modes, and accessories.

Knob Variants

Variant Encoders Display Best For
Single Knob 1 OLED 128×128 Simple systems with one volume zone
Dual Knob 2 OLED 128×128 + 128×32 Two-zone systems (e.g., mains + subwoofer)
Concentric Knob 2 (concentric shaft) OLED 128×128 Two-zone control in a compact form factor
Quad Knob 4 2× OLED Four-zone independent control

All knob variants are compatible with all WVC base station models. See Channel Groups and Multi-Unit Control for how encoders map to zones.

Controls

Single Encoder Knob

  • Rotate — adjust volume for the active channel group
  • Short press — toggle between Slow Mode and Fast Mode
  • Double-click — cycle to the next channel group. The display shows the group's custom name (e.g., "Front", "Sub") if one has been set, otherwise "Group 1", "Group 2", etc.
  • Long press — open the settings menu

Dual Encoder Knob

  • Top encoder — controls the first channel group (same controls as Single Knob)
  • Bottom encoder — controls the second channel group independently
  • Double-click either encoder — cycles both zones to the next channel group pair

Concentric and Quad Knobs

Concentric and Quad variants follow the same control pattern as the Dual Knob, with each encoder controlling its assigned channel group.

Volume Modes

Slow Mode

Each click of the encoder changes volume by approximately 1%. Use this for fine-tuning.

Fast Mode

Each click changes volume by a configurable percentage (default: 4%; adjustable up to any value via the LF Audio AuralSync app). Use this for quick, large adjustments — for example, jumping from 100% to 0% in 10 clicks when set to 10%.

Battery and Charging

  • Charge the knob for approximately one hour before first use.
  • Battery life is up to six weeks between charges.
  • Charge using the included USB-A to USB-C fast charging cable.
  • The knob automatically sleeps when not in use — there is no need to turn it off. Leave it on at all times.
  • The sleep timeout is configurable in the AuralSync app. To turn the knob on for the first time, use a small screwdriver or similar tool to press the button on the bottom of the unit.

Auto Shutoff and Hardware Sleep Mode

The knob includes an optional hardware sleep mode that powers down the knob at the hardware level after a configurable period of inactivity. This is distinct from a simple display timeout — the entire knob enters a low-power hardware state.

Configuring the timeout:

  • The auto shutoff delay (5–240 seconds) can be configured in the AuralSync app or on the knob itself. How it works:

  • When the knob has been idle for the configured duration, it enters a deep hardware sleep, consuming almost no power.

  • To wake the knob, simply turn the encoder. The knob wakes and reconnects to the base station in milliseconds.

  • There is no need to manually power the knob off when leaving your vehicle — hardware sleep handles battery conservation automatically, even if the knob is left in the car for days.

    Tip

    Because wake-up is nearly instant and battery consumption in sleep is negligible, most users leave the knob powered on at all times and rely entirely on hardware sleep for battery management.

Competition Mode

When Competition Mode is enabled (via the AuralSync app or the base station settings), the knob display stays on continuously and never sleeps. If the knob disconnects from the base unit while Competition Mode is active, the system mutes or limits volume depending on the configured mode. This is useful during SPL competitions or shows where you need constant visibility and controlled behavior.

Knob Mounts and Cases

All mounts use double-sided tape and built-in magnets to secure the knob in place. When installing a replacement mount, ensure the two magnets in the holder base are oriented to attract (not repel) the magnets in the knob before pressing them fully into place.