How efficient is a folded horn cabinet after you put two 100 db sensitivity sub woofers in it?

earlinarizona

Well-Known Member
Jul 17, 2010
173
44
1,583
Sounds like a simple question. You have 2 woofers with a sensitivity of 100db each and you put both of them in folded horn enclosure, so what is the actual rated sensitivity output then? How many DB does the folded horn enclosure add and how many more db sensitivity do you add using a second sub woofer?
 

JackD201

WBF Founding Member
Apr 20, 2010
12,308
1,425
1,820
Manila, Philippines
+3dB for the second woofer and the rest would depend on the actual horn design (volume and length) is my understanding. Then there is the consideration of the impedance if you choose to series or parallel the woofers. That's just my guess though. I hope our speaker designer members can chime in. It's an interesting question,
 

DaveC

Industry Expert
Nov 16, 2014
3,899
2,141
495
Yup, acoustic gain needs to be calculated.
 

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