Using multiple HDSPe AoX-D cards

The current driver supports the operation of up to three HDSPe AoX-D cards. To ensure proper functionality, all cards must remain synchronized, either through a valid sync source via word clock or by using Auto-Sync with synchronized signals.

Synchronization Setup

To maintain precise synchronization between multiple cards, internal connectors are available. The cards should be synchronized to the leader card by connecting the corresponding SYNC headers on the card with the supplied cable. Ensure that the clock modes for all cards are configured correctly in their respective Settings dialogs.

  • When all units are supplied with a synchronous clock signal (i.e., all units display Sync in their Settings dialogs), all channels across the cards can be utilized simultaneously. This setup is particularly streamlined under ASIO, as the ASIO driver combines all cards into a single interface.

TotalMix with multiple cards

TotalMix is integrated into the hardware of each HDSPe AoX-D, allowing for up to three independent mixers when using three cards. However, these mixers are separate and do not support data exchange between cards. As a result, a global mixer for all units is not available.

If required, submixes could be aggregated from different cards using the optional MADI ports.