I know of at least one customer who is using the Maplin linear PSU with the Capella. He has even emailed me to find out what parts to upgrade in the PSU. He thinks that it sounds better on bass than the Anker battery that he also uses. But that's just one person expressing his personal opinion. Maybe you'll be able to add some more weight to the Maplin PSU discussion after you have had the chance to try it out for yourself.