My audio system: PC -> USB out -> Fiio K5 Pro -> (1) RCA out -> Edifier S1000db (2) Amp out -> Sennheiser Momentum 1.0 (2013) I’m thinking of upgrade: 1. DAC/AMP to Topping D90SE & A90 stack 2. Headphone to HD600 / HD800s / Hifiman Arya 3. Speakers to Yamaha HS8 + HS8s (subwoofer) Will I get a...

Let’s say you already own some FLAC files and a PC, then what are the most important gear to get the best audio out of the file? Is it DAC, AMP, Pre-Amp, Headphone, Speaker, etc. of course they are all important tho but which affects the most. If you have $5,000, how will you spend them for your...