Originally Posted by Theresa
Very true, but as you say, a nice social event. I'd be more interested in the construction such a RCA jacks
The Parasound likely has a much beefier power supply and output transistors. Not that this is necessarily audible except perhaps at prolonged high volumes or with very difficult to drive speakers. I have an XPA-3 and am very satisfied with its sound driving speakers that dip below 4 ohms.
Yes, construction and aesthetics also have a part to play I agree. Some of the very expensive amps quite probably sound no better or even no different to the cheaper ones (so long as they are all working within their design parameters, not clipping etc) but some of them *look* stunning, and this could be a consideration for some. Pride of ownership can be important even when not reflected in performance. And good design is always, always expensive.
I have a fair bit of experience with very high end stereo amps, and a lot of them, while eye-wateringly expensive, don't necessarily have better construction quality than units that are a fraction of their price. IME. Some do, of course.