Hi Allan,
thank you very much for your reply and the informations. I will take some pictures soon. About the fuse I can tell that it is a ceramic fuse inside with 3 A, size ist 5 x 20 mm and speed is fast.
I am the original owner of the DAC and the second owner of the STA and happy with both products too.
I can highly recommend the AMG DAC. It is a great DAC with a nice warm sound. I compared it to some other DACs but I liked the AMG more.
Cheers,
Andreas