Volume seems fine. I ordered capacitors for the speaker mod and they arrived yesterday. I hope that gets the sound closer to what I want. I'd really like to do the four channel re-wire but not sure if I'll get around to it or not. I'd guess it's tough to feed up to the receiver. The Sony has a rear USB cable in addition to the one on front. I'd like to run that to an accessible location but I haven't found an easy place to get it through yet. I had a rough time feeding the mic cable but finally managed it. That's a tight little area with little in the way of openings unless I'm overlooking something (which wouldn't be a huge surprise).