Same here I'm afraid. Mine arrived yesterday. In front of amp it's very quiet. In the FX loop of my Rockerverb it's also quiet. 4CM using the HX One FX loop it adds an annoying level of hiss. I've messed around switching out cables and etc, it's definitely the HX One. The exact same setup with other pedals switched in in place of the HX One are silent. I'm using a CIOKS DC7 but I've also tried with the included power adapter. It's there in bypass and the gate doesn't deal with it. I've looked at the settings and there's nothing in the globals that affects the noise. It's not a deal breaker as I find using 4CM a pain live, but I was hoping it would work out for home use using the insert loop. I wonder if there's a batch that have this issue, or if simply that the users reporting quiet units aren't using the insert loop and 4CM.
