I have just received a brand new Studio 1824c and it has an un-bearable hissing from the main outputs into my studio monitors. I was hoping I could simply unplug my monitors from my other interface into this one, but I haven't been so lucky! I have now used several different cables, changed the position of the plugs, where things are plugged in, everything humanly possible to sort it out and I can't find a single thing to get rid of it. I plug my monitors back into my other interface and it works absolutely perfectly, no hiss, no nothing. I also notice that the main L & R channel metres on the front of the interface are flashing constantly with one bar, even though nothing is plugged in or routed to it, it's just turned on!
Is it a fault with PreSonus or are there any fixes? Thoughts please!