Newbie System Question sort of long, sorry

Without delving into technical conjecture, you could just try listening to the system with the Brickwall removed and find out if you can hear any differences in an A/B test. It could always be that Mdomnick might be correct assuming a higher-powered and more resolving system, yet it may have no effect on your system. Only one way to know whether or not.

Actually, your speakers are probably in a good place being on the long wall, as long as your listening chair is postioned in the sweet spot and several feet away, but do you have them set up properly on speaker stands, out from the wall a couple of feet or so? Overall, it sounds like it's a nice little system, but I tend to think that Gemini might be correct as to the next component you look at to upgrade (however, digital upgrades can be subtle and hard to identify at first, especially through modest speakers), and Zspradlin and he are right on the money concerning cables. If and when you want to take things up a level, you'll probably eventually replace everything, but if this is the type of system (and budget) you enjoy and have no gripes with it, then I would say well done. Remember, we all suspect there is something better out there, and almost all of us are right, but the key is in enjoying what you have and focusing on your music. Your system is probably more faithful to the music than 99% of what's in out there in the world. But when you talk about assembling a system "for life", be aware that most of us audiophools don't allow ourselves that contented a position, forever fiddling as we are wont to do. About the budget divvying and order of importance, I'm of the school that says start with the speakers, but you'll find plenty of spirited dissent from that (you can find my detailed arguments in my answers if you care to). In any case, welcome and happy listening!