Home » Audio » Pro Sound » Plans for trap box 15 and horn
Re: Plans for trap box 15 and horn [message #27723 is a reply to message #27722] Mon, 30 May 2005 13:41 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18722
Registered: January 2001
Illuminati (33rd Degree)

I'd suggest one of two types, either a DI matched two-way or a three-way with a simple conical midhorn. The advantage of the two-way is simplicity and the advantage of the three-way is reduced bandwidth for each driver. Either will provide uniform coverage if done right, because the two-way is DI matched and the three-way is horn loaded down to a relatively low frequency.

If the woofer is a JBL 2226 or equivalent, which seems to be the popular alignment for 15" pro woofers these days, then you'll want a cabinet between 2.0ft3 and 5.0ft3 tuned to 40Hz. Pick the port with the Helmholtz formula below and you're set.



 
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