I'm in the market for a new head. I've been checking out the following. Wanted to know from those of you that have owned them, what you guys think. 1. Aguilar TH 500 2. Markbass Mark Lite III 3. Markbass Big Bang 500 4. Hens Benz Shuttle 6.2 As you can see I'm looking for something around 500w and under $700. Any other ideas?