I have the Sr orange fuses in both of my systems, and 9 components in total. I bought them all at the same time, got 30% off . Was a $1600.00 investment, and well worth the money. The fuses were the last tweak in my system. I don't have the 200 plus runtime hours on them yet, but there was a noticeable change instantly.
One of the best investments i made was room treatments. I have roughly $50,000.00 worth of gear in my main system listening room, i bought Vicoustic diffusers, and 2 sets of SR frequency transducers. For $2000.00 they changed the size shape and sound of the soundstage & presentation the most. I have absorption panels in place as well. My room is 13 feet x 19 feet, and i feel like i am sitting in a huge concert hall. I have taken great efforts to be thoughtful as to what i have added to my systems to achieve the sound i was looking for. A Saturn 103 C power conditioner with all good quality power cables, has given me a ZERO NOISE FLOOR. I hear dead silence in between beat of music or lyrics sung. The room is as critical as the gear, once you get them married, it is musical bliss.