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Box Rise? - Subwoofers / Enclosures - #1 Car Audio ...
https://www.stevemeadedesigns.com/board/topic/143025-box-rise/
the total rise is 3.5 at 45Hz so with the amp at 1. I assume the box is rising 2.5. Posted May 21, 2012 If it is tuned at 40 and burpIng at 45, you are more than likely still in the spike above the tuning frequency. Your issue is that the burp may have a high impedance, but you may be ok at some frequencies with the lower tuning and playing music.
Impedance Rise, Box Rise - YouTube
https://www.youtube.com/watch?v=orgGE4b09wQ
Ed Lester explaining what "Impedance" is, and how Box rise can affect your car audio system. http://showtimecaraudio.net/ facebook at http://www.facebook.co...
Box Rise? - Subwoofers / Enclosures - #1 Car Audio ...
https://www.stevemeadedesigns.com/board/topic/29717-box-rise/
Another way to help out with the box rise is to put the woofer in a smalle enclosure. By cutting down the box size it will also help the rise at the amp. You could also try stepping up port area to get the rise down some, but this can also result in a smaller box with a frequency that the woofer isn't comfortable playing in.
What is box imp rise? - ecoustics.com
https://www.ecoustics.com/electronics/forum/car-audio/212558.html
Posted on Wednesday, March 29, 2006 - 21:35 GMT. bingo. box rise will change depending on the sub, box, and freq. but, you can find out what your box rise is at a given freq if you have a multimeter and an amp clamp. just run a freq to your sub and measure current (amps) and voltage the sub is seeing: Imp = Volts / Amps.
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