Arthur C Messages: 13 Registered: November 2011 Location: Paris, FRANCE
Chancellor
Dear Wayne,
Just one little question.
You have published the frequency response of Altec 811 + PSD.
I think that frequency response should be nearly the same with DE 250.
In your publish frequency response with 1.6 K filter.
For your test do you have used the 4pi speaker cross over with "Pi" compensation ?
I have already made a 4pi speaker and I would like to substitute the horn by the Altec 811.
Best regards.