I have a Welbourne Labs Compleat phono preamp. It is well made, contains high quality parts and is based on a good design. But, others have said reaching them for any advice or follow up info is near impossible!! I would recommend you look elsewhere; possibly a used tube conrad johnson pv 9 or 10a.The solid state classe dr6 is also pretty good if power is left on all the time-these units can be had pretty inexpensively as they have lost quite a bit of resale value.