First of all, Welcome to the, Martin Logan Owners Club! It is great to have you aboard! I am proud to say, that I love my, ML Descent, Subwoofer. It has wonderful mellow, smooth deep bass. The Descent, as you know, is a servo controlled subwoofer and very, very fast too. It is the perfect match for all of my ML electrostatic speakers. The break-in time is about 20-30 hours, for a new Descent. I played mostly DVD movies, with alot of effects, to break-in, my Descent. I also played CD's with alot of deep bass sound like, Ray Brown's, "Super Bass" and "Ray Brown's - Live at StarBucks"... For interconnects I would highly recommend for you, to check out the awesome recent thread, on this forum:
"Nordost Interconnect Flavors...", by "DTB300" (Dan, is a Senior Member) on the, "Main Discussion", part of this forum. It is a wonderful dicussion about the interconnects. I personally (currently) use, "Monster Cable", for subwoofers, interconnects with my, Descent. But, after reading / participating, in the thread, which I recommended to you, above.... I'm now concidering, changing to higher quality, better sounding kind of interconnect cable, in the future. I'm concidering, "Nordost -Blue Heaven". It is all part of my, "Up-graditis", which I am happily afflicted...
Anyway, I hope I could be of help... and it's good to have you as a contributing member of this ML Club forum.