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NITZ V1505 wrote:
bee wrote: tony in other threads you have said when designing your scoops you started with the well known formula for scoops...... what formula do u use....
It was not a formula. It was an adjustment. In the early days I had made JBL 4530's and '20's in an official capacity. As stated before, JBL always published their drawings to encourage people to buy their chassis speakers. The first 18" scoops I saw were gruesome. So I thought I could do a better job.
The S118 got scaled up by the difference in cone area between the 15 and the 18. This gave me a percentage figure. This is what all the measurements were increased by. quote]
Tony would that be the same as taking the plan for the JBL and dividing all the dimensions by 15 and multiplying by 18 ,or is it abit more involved than that?