Rank the tweaks, geeks!

Great thread.
In ranked order:
1. Speaker Cable. Townshend F1 Fractal and to a lesser extent HFC CT1-E cable were so far above anything else.
2. Power cord to DAC. Not any power cord. Only the Shunyata Alpha EF did the business. Others had minimal effects.
3. Speaker Isolation. On my B&W 804D Gaia feet were transformational. With my Boenicke speakers they have a bespoke ’swingbase’ which isolates the speaker in a similar fashion.
4. Adding a CAD GC1 and 3 - a grounding device, one for signal ground, the other for electrical.
5. Rack isolation using Townshend Seismic corners. These isolate the whole rack, making it ’float’, and mean individual component isolation is not necessary.
6. Power cord for my integrated amp. Again the Shunyata made the difference, others much less so.
7. Interconnects. Actually only one - all sounded identical except Townshend F1 Fractal, same as my speaker wire. There is something magical about the F1 loom.
8. Adding a Cisco switch between the router and bridge.
9. USB cable connecting the Roon endpoint to the DAC.
10. Changing from ethernet cable to an optical network (definitely not WiFi)
11. The type of Ethernet cable between optical switch and roon endpoint cable
12. Power cable to the active bass subs in my speakers.

Things that made no difference for me:
- cable risers
- the type of cable between my amp (pre-out) and the active bass units in the speakers
- the Ethernet cables from the router to the first switch

terry9++ just wish I had more '05 red Burgs

speaker isolation: Nobsound weight bearing limit is 80lb per quad. What springs for 140 lb. speakers? 8 Nobs under each speaker feels a little fussy.

+1 @millercarbon

Yes, impossible. Impossible to rank these.

Too much effort to rank, and for me it’s better only as a checklist as what one needs to address (or not) in their own system.

@kennyc Which of the tweaks on your list were most important to deal with first?

interconnects, speaker wires, power cords for all components, top three in that order. When you use isolation it is only desirable for a springy turntable. I only change the caps when they need it. I only would go for vintage fuses because the high priced fuses do not sound any better. As far as risers and dampers i can say that risers are just a problem if you have unshielded wire and as for dampers it depends on the tube gear in question.