Good advices for a newbie (threading tools lathe)

[PJs]

Thanks for the update pics Stefano. I hear both of you on the cold shop...mine was 45º F yesterday.

Looks like you made a mic holder also for your new EMC8000?

Curios what the depth of the cone will be based on the 1k-20k response on the driver? Is it some exact multiple of the wavelengths (1/f) of that frequency range (.0001 to .00005) to achieve some sort of resonance in the cone? With the exit port being 1.000" it seems you have the opportunity to tune the range a bit with the depth of the cone and of course the shape.

This all has me quite intrigued and really looking forward to how it all works out. Think I'll do some research on horn design!!

Thanks again! ~PJ