I am considering buying a linear power supply to upgrade my Dac. (topping D50) Just wondering what people's thoughts on this are. Is there any point in buying the budget ones from eBay or aliexpress? Considering the Dac was only 300 I don't want to go overboard. I also noticed that bryston use linear power supplies to their turntables.   My turntable is 15v input, I'm wondering if there is dual linear psu (5v and 15v outputs in the same chassis)   Any help is appreciated