Of course they all matter. However.
There are lots of rules of thumb with regard to different components. Over most of the last 50 years my system has had Speakers that were more in the 10% of system cost as opposed to the 30% or so recommended investment. I believe my system always sounded good for my investment level. But you must be good at component matching.
My emphasis has been:
1. Preamp
2. Phonostage / DAC,
3. Turntable / Streamer
4. Speakers and amp
5. Cables / interconnects
6. Power conditioning
7. Power cords
8. Other tweaks (dampening, lifters… etc)
There are lots of rules of thumb with regard to different components. Over most of the last 50 years my system has had Speakers that were more in the 10% of system cost as opposed to the 30% or so recommended investment. I believe my system always sounded good for my investment level. But you must be good at component matching.
My emphasis has been:
1. Preamp
2. Phonostage / DAC,
3. Turntable / Streamer
4. Speakers and amp
5. Cables / interconnects
6. Power conditioning
7. Power cords
8. Other tweaks (dampening, lifters… etc)