I've been itching to upgrade my somewhat old Energy Take 5 system lately, and I was thinking that maybe adding a new sub first would be a nice first step (I currently have an Energy ES-8 sub). Here are some questions I have related to this, I hope some of you can help answer: 1) Would adding a nice SVS 25-31 PCi sub overpower my Energy Take 5's, or would it make a nice addition, providing for more fuller sound? 2) Would I be better off upgrading the Take 5's first, instead of adding a sub first? 3) Kinda off the main topic, but it's something I've been confused about: When calibrating your sub (in my case, using VE and a RS SPL meter), what do you set the "volume" dial on the sub itself to? I've never seen the answer to this, and I'm unsure of what to do. What I ended up doing is setting it rather low (say, 4 outta 10) and calibrating from there... Any hints would be appreciated. Thanks!