I've got all my game machines and dvd player hooked up to my reciever (pioneer vsx-d812) and a standard 5.1 setup. Everything sounds great except a few playstation and playstation2 games. I can't figure it out, i dunno if it is a setting or what. it worsens as the volume increases. i was hoping that when i got my ps2 digital optical cable hooked up it would fix the problem but it didn't.

it's like the sounds are very poor quality or something, and it just sounds like crap, i've mainly noticed this on games with lots of explosions: metal slug x, castle shikigami, gradius V. i was really disappointed in gradius V having bad sound on my setup ikaruga for gc and shooters for the DC sound great on the other hand, and they have just as many explosions. i have no problems with older systems either.

anybody else have this problem or any advice (i've played with all the modes pro logic II, game, cinema, neo6, etc.)