Answers will vary basses up ones individual components that comprise the system, and cleanliness of AC power.
1) Source to the preamp, (interconnect).
2) Power cables.
3) Speaker Cables.
4) The second set of interconnects if used.
1) Source to the preamp, (interconnect).
2) Power cables.
3) Speaker Cables.
4) The second set of interconnects if used.