The power ratings on the Avatar cabs are sky-high! If I have 550 SS watts would I be able to drive the 1400-watt 4x10 or should I just get the 700-watt 2x10? Do I really need 700+ watts to drive a 2x10? I remember the days when 200 watts was a lot. Now some folks say to have twice what you're cabinet is rated at. By that logic I'd need 5600 watts to drive a couple Avatar 4x10s ?!? All I want to do is get a nice complement to my 400 watt Tubeworks 4x10 cabinet. Both will be driven by my Crest V900 (bridged) in parallel so I won't be able to separately control the level going to each cabinet. So I'd like something roughly equivalent. I know power rating does not equal efficiency but efficiency does not equal efficiency either if you know what I mean. So many questions. Thanks for your input.