There are essentially 4 different ps caps that we use....our regular 15,000 uF caps made in Taiwan (NOT CHINA !!!! They also have a Shenzhen factory, but I'm paying a cool 40 % more by have them done in Taiwan instead) according to our specs, and then there are the much, much more Symphonic Line designed caps made in Germany, 15 K snap ins, tall 16 K screw-ins, and the 35,000 uF hyper cap beer cans....the 15 & 16k caps can be substituted in every model, but the big mommas should only be used with the 800 + VA transformers to keep PS and performance balanced....