Congrats bighempin! The 3.7s are truly amazing! After having many different speakers in my room, these are here to stay. I did try them with a few cables and settled on a nice beefy Straitwire. I was also running a pair of REL subs with them for a little bit, and ended up deciding I liked them better without the subs. Depending on your amp, the 3.7s can produce some really deep and dynamic and nimble bass.
Also, when I first got mine they had very few hours on them and I was not entirely happy with their sound. They actually took several hundred hours of play till they reached their full sonic potential! 🙌 So, my advice is to be patient and give them ample time to fully “burn-in”, before making other major system changes.