I'm getting a brahma mkII and am rather worried about it's power handling. By the tech sheet I read, it only needs 500 wrms to reach full excursion in a 2ft^3 SEALED box and I'd be running it in a 3ft^3 slot ported box at about 35Hz, which is what it recommends for spl application. The slot ported box should lower the power needed for full excursion even less, right? That would mean that I would be pushing over 2x the needed power and may blow the speaker because of this. If I am mistaken please let me know.
I was just going by one of the tech sheets on their site. You always say that "the rms rating is a thermal rating, you do not need that much power to get the full potential out of the sub". Last thing I need is to spend a good amount on another sub to have it blow up on me, you know?
as they noted, it doesn't need that much power, but it can take it. you can also attenuate the amp using a crossover that lets you control signal level going to the amp, which will allow you to reduce the amount of output from the amp to balance it out and avoid overdriving the sub.
I believe that 500W RMS you stated above isn't sealed, I believe that was for 2.0 net ported tuned to 30 hz, and reaching full excursion on a 20 hz note(below tuned frequency). I'm guessing you want a 12" Brahma as the SPL box recommended was 3 cu ft tuned to 35, so the power requirement for the Brahma is around 900W to reach full excursion in a 1.0 cu ft sealed box. http://www.acoustic-visions.com/~acoustic/products/subwoofer_drivers/adire_brahm a/ I'm going by that chart, it's the same that is on Adires website. Anyway, a ported box actually has more power handling than sealed does above tuning, cone excursion is less. Typically you can add more power with ported than sealed and be able to handle it just fine, as long as you don't run the sub under tuning without a subsonic filter.
if I ran the bp1200.1 at 4ohms giving 600wrms does it still have the same max output? or should I stick with running it at 1 ohm since it is 2ohm dvc? Basically would it be better to run the amp 4 or 1 ohm?
ah, that's a lot of wiring, but good idea, so I would need 2 sets of terminal cups is all, where can I get good ones, something that would keep the thickness of the 12 awg speaker wire advantage I have?