I had the opportunity to have the RCA filters in my system temporarily, but the speakers were new so I can't give a meaningful comparison to the XLR filters. My 5A XLR filters currently have AQ Sky as the pigtails. I run a 1 meter pair of AQ Sky from my EMM DCC2 to the filters. I find the AQ Sky to be an absolutely incredible interconnect. I used the logic of trying to keep the interconnects the same for the input signal to the filter and what is output. Additionally, adding AQ Kilimanjaro Shotgun bi-wire speaker cables made another tremendous improvement in combintion with the SKY interconnects. I spoke to AQ regarding the SKY pigtails and they said they are also biased through the battery in the high pass filters. I had inquired about adding the DBS system to the pigtails and that was their answer. A couple of guys at AQ use 5As as their reference for evaluating their cables so maybe that is why I'm finding they are such a synergistic match with the 5As.
