Problem: Harsh tops Gerd Lommersum interviewed by Peter Strassacker (7/2004)
Peter: Gerd, please tell us, after designing or buying a loudspeaker that reproduces harsh tops, what can be done?
Gerd: There are two possible causes:
1) the tweeter is to loud Remedy: Fitting a voltage divider before the tweeter for level attenuation. (I have an Excel file to determine resistance values, a fixed table for 4, 6 and 8 Ohm is also OK).
Peter: We've got a Calculator too.
Gerd: 2) The tweeter sounds harsh and aggressive (rather in the lower frequency range of the tweeter) Remedy: Reduce the value of the capacitor before the tweeter by 20 - 30% (when using a 18dB/octave filter the first capacitor).
Peter: Thanks very much, Gerd.
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