Hello and thanks for taking the time to read this post. Can anyone advise on a good digital amp. I searched google for " digital amplifier versus analog amplifier " to gain a good knowledge of the subject, I like the idea of being able to insert a digital signal and have it amplified without the need for digital to analog conversion, essentially keeping it within the digital domain but cannot really find any specific lists of who the best manufacturers are or any model numbers. I saw the name Tripath and also a few Tripath items on ebay, how do they rank. Finally I purchased a digital amp out of curiosity (for the car) it did sound different but not particularly better when compared with my Audison lrx 4.300 which is analog. For home use i have a analog quad 405-3, what kind of digital amp should i be looking at as a replacement for this. Many thanks in advance. John.