Purité Audio
Trade: Purite Audio
You are of course correct. That should be the number one consideration after buying the gear, and before checking out cabling and other peripherals.
After buying equipment, I advocate the following:
1. Find the best location for speakers and ears (listening chair). The best way is to use frequency response (FR) measurements from say 0-500Hz using something like REW software.
2. Room treatment, particular bass traps. The FR software will tell you the sort of problems you have.
3. Complete the speaker/room corrections with an equaliser (it works for me anyway, before the naysayers jump in).
4. Consider cables, anti-vibration, power products. The last two won't change the FR but offer other qualities as described on this thread.
5. Consider CD cleaning and other CD treatment.
Up to number three I completely agree with you, under a turntable ,isolation can be extremely useful, maybe even under loudspeakers.
Your equipment should already have good internal power regulation.
This thread has shown that vibration/ Microphony is a non issue for solid state electronics.
Keith.