If you aren't hearing any pops or other turn off/on related noises, and all of the amps and the DSP (and any other accessories like lights and fans) turn on and off when they are supposed to, then everything is working. If you want to check each component just know that the remote wire simply supplies 12v+ when it's "on" and nothing when it's off.
I'm guessing you have the PPI 88r or whatever it's called. If you are hearing any pops or noises it might be worth re-routing the amp remote leads to the remote out of the DSP. In any case you can always parallel remote wires together up to the current limit of whatever is supplying the remote, so if everything is working fine now and you switch the amps over to the DSP remote out you might have to add a relay like mentioned above. I know my Helix and my MiniDSP remote outs both had enough current to switch on/off 4 amps but I can't speak for your DSP.
In addition, it's always a good idea to add a small fuse (1A should be plenty for non-relay installs) as close to the remote "source", be it the DSP, headunit, or any other source if you don't have one already. That will be enough to cover all of the remote wiring and you won't have to add more fuses after any other components like you would with battery 12v+ amp distribution blocks.
I'm guessing you have the PPI 88r or whatever it's called. If you are hearing any pops or noises it might be worth re-routing the amp remote leads to the remote out of the DSP. In any case you can always parallel remote wires together up to the current limit of whatever is supplying the remote, so if everything is working fine now and you switch the amps over to the DSP remote out you might have to add a relay like mentioned above. I know my Helix and my MiniDSP remote outs both had enough current to switch on/off 4 amps but I can't speak for your DSP.
In addition, it's always a good idea to add a small fuse (1A should be plenty for non-relay installs) as close to the remote "source", be it the DSP, headunit, or any other source if you don't have one already. That will be enough to cover all of the remote wiring and you won't have to add more fuses after any other components like you would with battery 12v+ amp distribution blocks.