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Re: From Wayne Parham - Re: Patentable claim

Hi Dan!

You wrote:

> > Well, I know what horn theory says, but I also have had a chance
> > to listen to some of these units (TD-1s) and it does work. Also,
> > measurements don't lie - I'm sure Tom and all would be willing to
> > measure a set for someone and show that it works.

For several months, measurements of a licensed Unity device were displayed that clearly indicated the fact that there was a frequency anomaly.

> > To me, this says that the horn theory that is documented and
> > published so much about is either wrong (which I don't believe;
> > too strong a correlation between the theory predictions and
> > measured results) or it is a specialized case (where it doesn't
> > consider the effects of drivers mounted partially down the horn,
> > and not at the throat, and the fact they are operating over a
> > narrow bandwidth of the entire horn).

Either that or the horn is not, in fact, acoustically loading the diaphragms. Efficiency would be greater if it were.

> > So, having heard the results, and having seen the measurements,
> > I'd have to say the horn does work.

Thanks for your objective evaluation.

Take care!

Wayne Parham

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