One of the most powerful features of Constellation is its modular design, allowing you to customize your system by swapping expansion cards. Every Ground Central unit comes equipped with the default Audio XLR Card, which includes an XLR/Jack combo input, a preamp, and two outputs (Left and Right).
However, if you’re looking for a different workflow or functionality, we’re developing a range of expansion cards that can transform your unit into an entirely new type of audio processor. Stay up to date on future expansion cards by following us on Discord or through our social media channels (see the Contact section).
The expansion cards are interchangeable and can be removed by loosening the four screws on the back of each card.
Available expansion cards include:
- Audio XLR Card (stock)

