Sierra Audio ALE Horn system with DEP Series Beryllium tweeters, all made from Permendur, weighing 25 kilograms each. Featuring the late Endo San’s masterpieces, these represent the highest level in the ALE hierarchy — true unobtainium.
This particular model is a one-off special order version, equipped with a larger exit phase plug nozzle designed for spacious rooms. The tweeter is optimized to recreate a grander sense of space while maintaining precision over longer listening distances.


