i'm having some trouble with my Denon avr 3808ci receiver and i'm thinking i might have to get it repaired at some point. it keeps shutting off so i'm figuring it's overheating. the thing is i spent a lot of money on it when it first came out so it's a few years old and has performed well. i'm wondering however, if maybe it isn't time to get a new receiver that can handle 3D and other features my current one doesn't have. what i would like to know specifically is, will i lose a lot of audio quality if i go with a less expensive model. i live in an apartment so i do need to shake the walls, although i do like some volume when watching movies. i just don't have the money to spend on an expensive receiver these days.