Ravi, "high end" really means "high price", and doesn't necessarily have anything to do with sound quality. You've also mentioned a couple times in the past that your 1602 had plenty of power for your M80s in your setup. Unless you're playing at such high sound levels that your 1602 is audibly distorting(apparently not, from your description)the 1602 is giving you transparent amplification and isn't affecting the sound quality in any negative way. If the time comes when you want some new features in a receiver, that might be a reason to buy one, but sound quality isn't.
