I switched from a pair of IA 40.1's to the 7k2d and gained 800 watts in power output. I then stepped up to the 7k2d and got another 1000 watts output. All this without changing my electrical. I ran both daily. I ran the 7kd @ .5ohms daily and never got it warm. Ran the 7k2d @ .7ohms daily and it to never got warm.
Im not a nuthugger either. I would love to have MY old IA 40.1's back also. I just love big amps and Stetsom really fills the bill
O and back in the day I hated stetsom from all the crap I heard on here about them and plus I didnt like dante. But I got a good deal and tried them out. So just try them u wont regret it