All solid state, and most current tube preamps are of low output impedance, and should present few matching problems. Check with the Manufacturer of the equipment involved if doubts exist. If you are in the planning stages of a new system, or redesigning an existing set-up, consider rearranging the equipment to take advantage of these ideas. I think you will find the benefits well worth the effort. One can expect an overall improvement in the sound of the cable after break-in occurs.
Many listeners report a cleaner, more effortless sound with increased detail and focus.
Recommendations regarding the length of time necessary to complete the break-in process range from a few hours to over two weeks of continuous playing time. Check the recommendations provided by the cable Manufacturer for specific guidelines. Here, no air or other contaminants would be allowed in to spoil the connection. Unfortunately this level of quality is practically unachievable with today's connectors, but our diligence in working toward this ideal will be rewarded with improved sound. A clean, tight connection is mandatory.