> ## 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 the Sigberg Audio subwoofers.

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

| Connection | Description |
| - | - |
| Balanced (XLR) | Balanced analogue input and through output. |
| 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. |
| High level input | The high level input can be used to connect to your existing amplifier if no pre-out is available (use included adapter). |
| USB | Connect your laptop to access the parametric EQ and additional settings. Otherwise for maintenance and service only. USB audio is not supported. |

If you are connecting the subwoofer to Sigberg Audio speakers, see the subwoofer integration page in the [Manta](https://docs.sigbergaudio.com/speaker-systems/manta/subwoofer-integration.md) or [SBS](https://docs.sigbergaudio.com/speaker-systems/sbs/subwoofer-integration.md) manual.

The location of each connection is shown in the [amplifier overview](https://docs.sigbergaudio.com/subwoofers/basic-operations.md#amplifier-overview).


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.