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

# Connections

> Available inputs on SBS, and how to connect the speakers with analog or digital cables.

> [!WARNING]
>
> Always make sure the loudspeaker is powered OFF before connecting or disconnecting cables.

## Available connections

| Connection | Description |
| - | - |
| Balanced (XLR) | Balanced analogue input and through output. |
| Digital (AES, S/PDIF coaxial and optical) | AES and coaxial input and through output, optical input. |
| Unbalanced (RCA) | A stereo input signal is internally mixed to mono. For mono use, simply connect only one of the channels (left or right) or use a Y-split. |
| USB | Connect your laptop to access the parametric EQ and additional settings. Otherwise for maintenance and service only. USB audio is not supported. |

## Initial connections

The easiest way to think of the SBS is as speakers with built-in mono power amplifiers. This means you need to connect them to a pre-amplifier or processor with either RCA or XLR stereo outputs, the same way you would with a power amplifier.

If you only have one source (with volume control), you can also connect the SBS directly to a source, for instance a network streamer.

![Pre-amp connected to the left and right SBS speakers and to the subwoofers](https://mintcdn.com/sigberg-audio/NhUFKdoMwLjN6EuK/images/sbs/analog-connection.svg?fit=max\&auto=format\&n=NhUFKdoMwLjN6EuK\&q=85\&s=397528d8f8f5dbc764c9a35dab09dc1d)

Your pre-amp or source also needs an additional pre-out or subwoofer output to enable you to connect your subwoofer(s). Using a Y-split is also possible if you only have one pre-out.

If you use XLR connections and have dual subwoofers, you can also connect the subwoofers directly via the speakers using the XLR Through connection. See [Subwoofer integration](https://docs.sigbergaudio.com/speaker-systems/sbs/subwoofer-integration.md).

![Two subwoofers connected to the XLR through outputs of the SBS speakers](https://mintcdn.com/sigberg-audio/NhUFKdoMwLjN6EuK/images/sbs/xlr-through-subwoofers.svg?fit=max\&auto=format\&n=NhUFKdoMwLjN6EuK\&q=85\&s=91896d996b9b8f1308439110879c0f1d)

Option: dual subwoofers connected via XLR through

If you need assistance with setting up your system, feel free to [contact us](https://docs.sigbergaudio.com/speaker-systems/sbs/care-and-support.md#contact-and-support). We will be happy to help!

## Digital connection

If you connect digitally (AES or TOSLINK), both speakers will receive a stereo signal. Your SBS speakers are preconfigured as a L+R pair that will pick up the individual left or right channel.

![Digital source connected to the left and right SBS speakers with AES or TOSLINK](https://mintcdn.com/sigberg-audio/NhUFKdoMwLjN6EuK/images/sbs/digital-connection.svg?fit=max\&auto=format\&n=NhUFKdoMwLjN6EuK\&q=85\&s=3fdfd40eb9e89b7b3de753b51c25b21f)

**1. Find the left and right speaker**

Inspect the serial number label on the rear of the speaker. The identical serial numbers will end with "L" and "R" respectively.

**2. Place the speakers**

Place the speaker labeled "R" as the right speaker, and the speaker labeled "L" as the left speaker.

### Check the channel configuration

You can double check the configuration by pressing the **select** button on the speaker and holding it for 3 seconds. Either "Left", "Right" or "Left+Right" will light up to indicate the current configuration.

### Change the channel configuration

If you wish to change the configuration, or accidentally did so: press the **select** button for three seconds and keep pressing. The configuration will change and cycle through "L", "R" and "L+R" every 1.5 seconds.


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