Suggesting a Parasound A/B Amp to a Threshold Class A Amp is a poor comparison! Nothing in the Parasound line is comparable, and that is from personal experience with both Amps.
Threshold Stasis S/150
I am considering purchasing the S/150 to drive the Vandersteen 2ci. Do you think the S/150 is enough to drive the 2ci? What I have heard is that the first 30 watts is in Class A mode. Thanks