Well, I have 3 1QSE's arriving today from Parts Connexion (20% off). I look forward to hearing what, if any, positive effect they will have on my system. If the effects negligible, then that's a financial hit that I factored in before the purchase. We'll see. After all of these years in audiodom, I have learned to keep an open mind and try such devices. Happily, most have been for the positive.