'natural filter', my next Infinity was the Sigma while my
son got the Renaissance. The tweeter of Sigma was covered
with a peace of felt (the stuff for hats) with a small cut
in the middle. I made a 'copy' of this filter for my son and fastened the thing with the double sided tape on both
adges. The result was a much better dispersion above 4Khz
and more linear fr. responce. In the user manual of the Sigma was the explanation of this filter. I sold my Sigma
4 years ago and bought the Usher BE-20. So I am alas not
able to 'reproduce' this explanation. I hope that sombody
else will provide this info as well as the dimensions of this filter with the 'cut in' size.
Regards,
son got the Renaissance. The tweeter of Sigma was covered
with a peace of felt (the stuff for hats) with a small cut
in the middle. I made a 'copy' of this filter for my son and fastened the thing with the double sided tape on both
adges. The result was a much better dispersion above 4Khz
and more linear fr. responce. In the user manual of the Sigma was the explanation of this filter. I sold my Sigma
4 years ago and bought the Usher BE-20. So I am alas not
able to 'reproduce' this explanation. I hope that sombody
else will provide this info as well as the dimensions of this filter with the 'cut in' size.
Regards,