AES E-Library

AES E-Library

Reduction of Distortion in Conical Horn Loudspeakers at High Levels

Document Thumbnail

Many horns have audible distortion at high levels. We measured a horn consisting of six conical sections with a 10” element at 99 dB SPL. A closed back gave maximum 2.4% second harmonic and 3.4% third harmonic distortion in the 100-1000 Hz range, while an open construction had 1.25% and 0.6%. A new semi-permeable back chamber reduced this to 0.7% and 0.35%. We hypothesize that the distortion is partly due to the non-linear compliance of air in the back chamber, and partly is due to the element’s interaction with the front and back loading of the horn, and that the new construction loads the element in a more optimal way.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society