Horn Loudspeaker

[Guest]

Hi there. We have constructed a matching pair of horn loudspeakers as published in the Elektor Electronics magazine in May 1990 (pages 20-23). We have recently tested the speakers with a frequency analyser and found the low frequencies roll off at around 315 Hz, somewhat higher than expected and higher than the response indicated in Fig 2 of the article. Are you able to provide clarification of the following:

1. In Fig 2 of the article there are two response curves. Which one is the measured response of this unit? What is the other curve for? This figure isn’t referred to in the article.

2. Has there been any modifications or amendments to this design submitted or published that might answer our problem with lack of low frequency response?

Any suggestions or information would be very much appreciated.

[Elektor Editor]

Duplicate posting, see "Past Articles (pre-1995)" main topic for our answer.

Jan Buiting