Posted by Walt on December 17, 2002 at 02:45:27

In Reply to: Re: Wow! Very interesting! posted by Michaelz on December 16, 2002 at 13:25:39:

Ah = cross sectional area at the beginning of the horn
Am = cross sectional area at the end of the horn
l = horn length

The numbers I gave correspond to a hyberbolic horn as it was descriped in a previous edition of the german magazine "Hobbyhifi" as you will model this horn you will see that in this case a too large volume will result in a non flat frequnecy response. In this case the volume should be kept as small as possible:

http://www.hobbyhifi.de/Archiv/02/04_02/04_02.html

Best regards,

Walt