[jc MiniPunch Bass Horn Plans]

JWC or others, 

 

I know this is an old thread but it is worth a try.

 

I would like to learn to calculate those horn design, is there a spreadsheet for such design.

I would like to build a quadstack with 15''  with a FC of around 40hz.

 

Horn length is small and that what appeal me so much with such.

 

 

Thanks