Hi cal3713, thanks for your input.
Well the system that i use at the moment to drive the 3.7s is not going to stay, this is just short term gear to drive the speakers and not leave them stored in their boxes.
I bought the 3.7s used 2 years ago when i became aware of Thiel Audio not producing them anymore.
When i auditioned the 3.7s for the first time in early 2014 i told to myselt this is the speaker i want to build my future reference system.
The gear i am considering for my future system is in another league and the budget that goes with it pretty scary.
From what i've red the Plinius 9200 is no good enough to replace the Classé.
I think the only low budget integrated to consider for 3.7s is the Sugden IA-4.
But considering my ambitious project it's probably not worth spending money now.
cal3713 didn't you have any trouble driving the 2.4s with the CAP-151 ?
2.4s are power hungry.