Experience with PT Wave Guides

[Zilch]

The useful contouring is only over a relatively narrow range of capacitance values. If you look at the 3 curves I ran you can see that the 5UF red curve has already got you real close too the value where you won't have enough energy in the last octave.

Yes, that's what I am suggesting as a way to "dial in" the high end of the 2431s.

Your red curve looks like it'd be nearly optimum for them.

[Geez, our curves are quite similar, which tells me we're getting real characterizations here.... ]

Why are concerned if the peak is above 20Khz?? How much information is in music above 20K where you would excite the peak??? For all intents and purposes the peak is out of band on the driver and for most source material unless your running DVD-A SACD or Vinyl.

Another option for 2431H (here on PT-F,) then, would be 4 Ohms, 0.02 mH (green):