I ordered Synergistic Research ORANGE fuses. i was sceptical that a fuse could play an important role in sound quality. i was pleasantly surprised. the soundstage is more detailed, with more details on the resonance of musical instruments and the vocal timbres of singers. it's realistic. i saw this difference after 1 hour of listening to a breakdown. Fast delivery, I made a mistake on the dimensions of the fuses I contacted the store to make an exchange I had a very understanding friendly and professional person who exchanged them without any problem. I recommend them without any problem