I edge my workspace with 40mm Noctuas at 3000 RPM and the tonal quality is perfect for focus. Need ambient drone that matches this frequency profile. Not white noise—needs that specific blade-pass harmonic with occasional seek-click texture from nearby rack.
Cache hit ratio on my current playlist is terrible. Most "ambient" is too warm, too much origin server in the sound.
What do you use? Preferably something I can edge to my PoP locations without sync issues.