DB-19: Resurrecting an Obsolete Connector (2016)
The Mackie Onyx 1640 <a href="https://intranet.bloomu.edu/documents/tech/ims/Manuals/MackieOnyx1640StudioMixer.pdf" rel="nofollow">https://intranet.bloomu.edu/documents/tech/ims/Manuals/Macki...</a> has two DB25 connectors.