Originally Posted by Red Five
2000 watts would be a little beyond 2/3 gap running a 19Hz 2nd order (12db an octave) HPF. 2/3 gap looks to be 20.67mm from the spec sheet. 2000 watts is pushing 21.5mm of excursion based on the simulation. I also redid the math on the LFE, I think the tune will come out closer to 15Hz than 16Hz. 1900 watts would be a little less stress on the woofer for a peak limiter, that would be 82.7 volts into 3.6 Ohms.
Thanks for the calculation. I will limit the sub to 82volt peak. Do not want to be annoying but I have one more question - what crossover slope should i set on my MiniDSP 2x4HD? I see you calculated with 12dB octave slope, wouldn't increasing it protect the subs more? Because now I have it on 17Hz BW 30dB slope. These are my in room responses:
Green line - Raw response without any filters.
Purple line - 30dB BW slope on 16hz (increased it to 17hz later on), no PEQ
Cyan line - 24dB BW slope on 16hz, no PEQ
Is this a good in-room response? And should i change my crossover to 19hz 12dB? Thanks.
Also I am thinking about lining it with polyfill instead of adding pillows, would that be any more beneficial? Or I shouldn't bother and just throw in a couple of Ikea pillows in each box?
PS. these things are absolute monsters, the mini martys do not compare at all. I would recommend these LFE boxes to anyone I know.