I also have the 160s and am using it with Joseph Audio Perspectives. My space is similar in size and am completely happy with this combination. I considered the JA Pearls, but with my room size (and a downstairs neighbor) they were too much speaker for the room.
@ghdprentice has done a lot of research and testing and has been more than generous in sharing it with those using ARC gear. As an alternative option, I just tested a Furtech Project V1 with my 160s and was impressed within the first 2 minutes at the increased sound stage and detail. I already have one V1 for my Furtech Pure Power 6 distributor, but am going to order a second as it made such a material difference.
Finally, don't think that the stock cords are substandard in any way. I lived with mine for over a year while I focused on other changes and thankfully these are upgrades you can do step by step.