Everyone of us has a different character, different taste, different point of view, so even if we will set up two sets of equipment and play them the same time . There is one more factor which might effect our entire test , because not every day we are able to hear what hear the same , for example due to mood, even physical pressure can effect our tests and many more factors which I don't even think about So most time we ask others opinions, books , reviews that is the beginning where we usually start. But in my case I can listen oppo because I own one 95 and I turn it on maybe once every 2 years check if it still works, but accuphase I have to turn on almost every day I think I'm addicted to it. I bought it to quench desire, and I know I will never extinguish it, and I'll never find anything better than this