Hi, I've had a Denon 1800 for a few years, I just recently traded it in for a 2803. Is there really that much difference between the two. To be honest, since they're both not here, I can't to an A/B comparison. I don't really notice any kind of huge improvement, except that I don't have to turn the center speakers volume up which I did with the 1800 as the talking in movies never seemed loud enough. It sounds great, but I thought the 1800 sounded great too. I know the difference between the models, but I'm not concerned with 7.1 or other extra features, I'm just strictly wondering is the sound of a movie should be that much better using a 2803 as opposed to an 1800.