Posted by Wayne Parham [ 65.214.102.163 ] on February 19, 2007 at 15:39:34:

In Reply to: Re: PiAlign.Doc Changed since 2001? posted by spkrman57 on February 19, 2007 at 13:02:06:

That's one reason. The other is that the 9π/12π combination supercedes it. The old ten π was a folded horn that used a 2205, 2225 or 2226 driver. It had had just one fold, and its panels acted as reflectors for higher frequencies. So it could be used to relatively high frequency. But the midbass horn in the 9π also uses the 2226, and it is a straight horn. Naturally, this is a cleaner arrangement.

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