I think my speakers may be under-powered. I have a pair of Mackie c300z rated at 300W RMS at 8 ohm. My power amp, a Mackie M1400i, has a stated "Continuous Sine Wave Average Output Power" of 250 watts per channel into 8 ohms. Isn't it true that an amp should have 50% more power than the speakers? So, am I underpowered? BUT... does it have any bearing on the matter that I send my signal to two subs first, and then high-pass the remaining signal (100 Hz and above) to the amp? Thanks! BTW, this setup is for DJing.