Hardly true in the yamaha argument parasound uses very high quality parts and they are designed by John cure a genius in circuit designIt is indeed true. The Yamahas employ Nichicon and Chemi-Con caps. The Hint has cheap Taiwanese caps. Parasound reserves the top- shelf parts for their higher-priced Halo products. They at least had the sense to replace the cheap Alps pot with a better volume control in the Hint6.
I owned the original Hint, and while it sounded good, it also sounded unremarkable, rather boring and homogeneous within a few tracks. The A-S1100 produces a wider/deeper soundstage, more fleshed-out tone, slightly deeper bass and greater resolution. That last advantage was probably due to the much lower noise floor. However, that might not have carried over to the new models, since they’ve switched to toroid transformers that have a hard time handling any DC offset on the mains.