I'm using a 7-year old Onkyo 7.1 surround sound system right now. It sounds great, but when you use the menus (like browse a DLNA server) or switch inputs (or something cuts out), there's a second or two lag on everything.
I wish that AV receivers had USB inputs for PCs.
"But Andrew," I hear you say: "Go to $store and search for receivers with USB ports. There's hundreds!"
Those USB ports are for playing MP3s off a flash drive. A PC isn't a flash drive. Do you have a receiver like that? How do you connect a PC to it with USB?