John, my guess and I'm sure I'll get slammed for it, is that before I had one monoblock driving all the drivers (6), and now have 2 seperate monoblocks. So one 300 monoblock is probably able to drive the woofers more efficiently/easily by itself, then when it also has to drive the mids/highs also. That being said, I'm guessing it had a little more headroom.

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