Hey everyone. I just signed up to this for some advice really, i've read a few threads on here and found it really informative. Basically i just brought myself a marantz pm5004 and a set of mordaunt-short aviano 1 speakers. I got these to replace a really old technics hifi but I wanted an introduction into seperates. My speakers are rated at 100W each but my amp is only 45W each. Although on the back it says 110Watts but i think it is 45 per channel.. Now I have spoken to one of the guy at the store where i got mine from and he's said I can exchange it if i want something with a bit more "drive" I looked at the AS-500. It seems to give out more power and it also has a dedicated sub out for if i ever get a sub which some day I would like too so I can have a 2.1 setup. Don't get me wrong, I like the marantz, but soon I will be moving into a bigger room in a new house, and we may have a few parties etc, I just want your opinions on whether I should upgrade to the yamaha as-500 for more power and the subline, or get the next marantz up or stick with what I have? All opinions are welcome and any advice is really appreciatd, as I said in the title I'm a real novice! Basically I'm wondering will it be better to have more power per channel if my speakers are rated 100W. So at the moment am I only giving them half of the power they are capable of taking and would the AS-500 give them a bit more. Also can anyone recommend a good DAC, just an intro one really as at the moment all I'm using is a rca to 3.5mm jack. Thanks guys!