I have applied the Q45 to my speaker cables. After 2 hours, I can report that I am very happy with the purchase. Improved texture and detail are easily apparent.
the website says 24 to 48 hours of break in will occur. I was planning to do a little bit every week but it seems that some are doing everything at once. The improvement was so nice that it is tempting to do everything at once but am wondering if it makes sense to go in stages in case too much becomes overwhelming