Analog Summing?

"I just don't buy it. I've heard examples, people have posted up examples around the 'net, and every time they do it, they go 'Listen to how much better that sounds when it's summed,' and I've always preferred the digital mix. So I think I'm just going to stick with that."

---Rob Swire, Pendulum

欸，難怪這麼難聽。