drack1
Welcome! Good to see you here. Yes, a Pass Labs X250.8 will be enough current for a pair of CS 3.7 speakers. This particular model requires a large room to "bloom". Listening position is fine at 8.5 feet.
The Panel has several 3.6 fans/owners, stay tuned until those guys chime in to address your query. I look forward in reading more about Musical tastes and system.
Happy Listening!