Authorized Prototypes

++ Attention ++

Please only trust the contacts provided here on this page if you request a copy or variant of my horn designs! Only these contacts received the latest optimized horn profiles. If you may see other people not in this list offering my designs they are not allowed to and they do not have my fully optimized horn profiles!

Disclaimer: I have no influence on any pricing nor do I receive license fees.


  • William Neile Acoustic Loading Optimized Horn with rounded edges.
  • cut-off: 300Hz
  • T = 1.0
  • L: ~47cm, W: ~64cm, H: ~29cm
  • Contact: Jaroslav Pelan,

WN300ALO (raw condition)

WN300ALO (raw condition)