DSP Over DLNA
Starting with build 20.0.27 you can apply DSP to files served by MC's DLNA server(s).
Options->Media Network->Add or Configure DLNA Servers->Audio
Mode: Specified output Format MUST be selected.
...DSP Studio ...
will be visible. Make any changes there.
Note that these options only apply to files served by that particular MC DLNA server.
You can create multiple DLNA servers and each will be able to have its own DSP Studio settings.
This means that, if you associate a zone with a particular server (right-click the zone and do "associate with DLNA server"), you can have separate DSP effects for each zone or group of zones.
Thread on the JRiver forum.