---
title: "Quasar Link  & PFL (Preview) mode explained"
slug: "quasar-link-pfl-preview-mode-explained"
updated: 2024-12-16T13:08:14Z
published: 2024-12-16T13:08:14Z
canonical: "docs.telosalliance.com/quasar-link-pfl-preview-mode-explained"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Quasar Link  & PFL (Preview) mode explained

## Scope

This document applies to Axia Quasar consoles running version 2.1.2 (09 Sep 2022) or higher.

## Description

Quasar adds some additional functionality that was not available in previous Axia consoles. As a result, some new nomenclatures are used in Quasar. In the context of this document, they are;

- PFL (Pre Fader Listen) - This was referenced as Preview in Fusion, Element, and iQ series consoles. While the name changes here in Quasar, the behavior is the same.
- AFL (After Fader Lisen) - AFL is just what it sounds like. It is a way to "Preview" the source; however, what you hear is from **AFTER** the fader.

What had previously been referred to as Preview is now used in a more general sense as it includes both PFL and AFL.

For example, if you had a fader down and engaged PFL, you **would** hear the source audio. Conversely, if you engage AFL with the fader down, you would hear no audio.

## Setting PFL Mode

The PFL Mode setting is not global. The setting is found in each Show Profile and can be set differently in each show.

> [!WARNING]
> In previous consoles, this was known as the **Preview Interlock** mode. The PLF Mode setting affects both PFL and AFL.

1. Using a Web Browser, navigate to the main web page for your Quasar console.
2. Click the **Shows** link located under the Profiles heading.
3. In the **Show Profiles** section, click the show name of the profile to edit. In this example, we'll use Bryan's Best. The Main Page for the "Bryan's Best" profile will open.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/27820b48-b47f-42d2-9f88-9ec9cd3fd52a-image.png)
4. Click the Monitor Section button at the top of the page.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/1f5b6580-2c5f-47f7-820d-904b36b682a6-image.png)
5. Click the drop-down list for the PFL Mode setting under the PFL heading and choose the appropriate setting.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/524f22b4-e367-4e63-a866-2914560f7a51-image.png)
  - **Retain** - no changes are made when the Show Profile is loaded. For example, if the current setting is Summing, loading this profile would leave it set at the Summing setting.
  - **Summing** - multiple sources can be selected simultaneously.
  - **Intercancel** - selecting a new PFL or AFL source automatically cancels the previous one.
6. Scroll to the bottom of the page and click **Save Show**.

> [!WARNING]
> To apply the settings immediately, you must reload the Show Profile from the console. Otherwise, the settings will be applied the next time you load the profile.

## Let us know how we can help

If you have further questions on this topic or have ideas about improving this document, please [contact us](https://www.telosalliance.com/support-request).