Lyngdorf TDIA 3400

Just pulled the trigger on a 2.5 yo single owner unit. Should be here late next week. I had a 2170 before and it was amazing with the right speakers. ran out of juice on some Dynaudios. Pretty excited as it’s a family room now that’s not ideal for a Hifi system and I think the room perfect will clean it up real nice. 
 

Anyone went from the 2170 to the 3400 and what’s your experience? Any tips for the 3400? 
 

Thanks 😊