SUBWOOFER 15 INCH BANDPASS 80Hz Tuned PLAN Variant #2

[@deejaygfunka2599]

Its 6th Order... Thank you very much

[@АлександрДолгов-щ2д]

Please lay out the RCF 705-AS II plan. Thank you very much in advance.

[@davidngoma6701]

It looks like it's double tuned, what's the other frequency?