Just throwing together a little 4th order box for a btl n2 Ive got sitting around. Going to be 1.97 cubes sealed and 3.84 ported. Porting with 2 5"x7" aero ports to 47 hertz. Moar pics here in a few.
Heres a little sketchup of what itll look like.
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Alright got this ish finished. Im surprised with how loud and low it gets. Ive never built a 4th order bandpass and figured it wouldnt hit low tuned at 47 hertz, but damn.
Pics
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4th Order Single BTL N2 15
Linear Mode
