Would there be any further improvement putting another Puron filter in the 1 st position in my Audience Adept Response R12 conditioner to go along with the other 2 Puron filters for further sound improvements?
Unless you try it out, you won't know. There is no magic formula here. I currently use 4 of them - 2 in similar circuit like yours and the other 2 in the HT circuit since they are connected to the same breaker. The improvements have been cumulative and overall phenomenal. However, when I added one in the InAkustik power conditioner, the sound messed up, so I don't use in over there. Get one and try it in the Audience for couple of days to see what you think. You can always return it to Mark or use in other areas, like other outlet connected to the 2-channel or HT.