Originally posted by billfitzmaurice
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Understanding Sub-woofer SPL
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Originally posted by STIchris722 View Post
I tried to send you a PM, but it wouldn't allow me to. I have some questions regarding a set of Tuba plans I purchased from you.
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Originally posted by billfitzmaurice View PostBecause bigger and more expensive is always better, and in the words of a high end cable executive, 'As long as people are stupid enough to buy what we're selling we'll keep selling it'.
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Originally posted by STIchris722 View Postwhy would anyone purchase a 21" over an 18"? !
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So I contacted a B&C rep and they told me that the reason a 21" speaker doesn't have anymore output than an 18" is due to the additional mass of the cone being moved. If this is the case then why would anyone purchase a 21" over an 18"? I have been so intrigued with the 21" speaker because of the Tim Allen tool time mentality of bigger is better, but after modeling them, they look terrible. I can post some pictures if anyone is interested, but so far this B&C 18TBW100 is kicking more butt than anything else I can model. If someone could shed some light on this I'd appreciate it. Cheers!
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Originally posted by STIchris722 View Post
That looks outstanding. What is it tuned to? Does it sound good? I like the design!
IIRC it was a couple years ago . it was tuned low 20's and could handle 3600w before X-max became an issue . the sound was clean and amazing . not a cheap though .... https://www.parts-express.com/bc-21s...4-ohm--294-689
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Originally posted by STIchris722 View Post
What is this supposed to mean?
Party on Garth
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Originally posted by Paul O View PostYou're comparing a top shelf driver to a mid level driver so they're not really in the same ballpark, even a Definimax doesn't compare to the B&C when it's being pushed. Have you modeled the 18TBX100? I'm also seeing 5.5 cu/ft per driver as the optimum for power handling.
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Originally posted by filmslayer View Post
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Originally posted by donradick View Post
Fair enough, rock on Wayne
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Originally posted by STIchris722 View PostI am designing a set of 18" PA sub-woofers right now and am torn between the Eminence KappaProLF 18" vs the B&C mentioned earlier.
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Originally posted by STIchris722 View Post
I appreciate the advice, but I don't have any interest in horns or scoops. I don't care for their directivity and complexity in construction. I will not disagree that you can get a lot of output out of a horn with a small speaker, but I don't care for the response curve or directivity. This is not a slam on Bill or anyone else that uses these products. I simply prefer direct radiating.
I am looking for some advice on driver selection at this point.
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Originally posted by donradick View PostDude,
I can't help you with driver choices, but I'm pretty sure that for PA use, you need to be looking a bass "horns" or "scoops".
Because you will def run out of SPL using direct radiator boxes.
Like one of the designs from Bill Fitzmaurice:
I am looking for some advice on driver selection at this point.
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