What is the best way to connect 16 ouputs on two DB25 connectors to Sigma's inputs?
FAQ published on: 01/08/2014
Last edited: 01/08/2014
First, it should be noted that in order to enjoy maximum ease of use from Sigma with regards to handling mono and stereo signals, it is necessary to connect 32 outputs (on 4 x DB25 connectors) to Sigma's own 4 x DB25 connectors.
For instance, connecting the outputs of two Alpha-Link MX 4-16 (with 2 x DB25 output connectors per Alpha-Link), would allow each Sigma channel to be switched to mono or stereo at any time, according to the requirements of your current project, with no repatching necessary.
We are aware that in some cases, a full complement of 32 outputs may not be available from the DAW. For instance, if a single Alpha-Link MX 4-16 is used, it will provide only 16 channels across 2 connectors. If these two connectors are linked to two Sigma DB25 input connectors with DB25 to DB25 cables, Sigma will only be able to handle 8 signals (which may be mono or stereo).
In order to feed 16 mono signals into Sigma, it is necessary to use all of its four DB25 input connectors. So to follow up with the Alpha-Link MX 4-16example, one DB25 output on the Alpha-Link should be connected to two DB25 inputs on the Sigma.
This would require special cables to be made, and it would make it difficult to handle stereo signals when necessary.
So the best solution for this kind of configuration would be to use a patchbay: connect all the DAW oututs and Sigma inputs to the patchbay, then manage the connections with patch cables to handle stereo pairs or mono signals as required by the project you are working on.