Updated: 08-Dez-06

The new Master Reference Loudspeaker system

ilter Design


Introduction (September 7th)

From the main introduction page, you can read that this system is for a great deal ACTIVE.. So why Filters ? Well, for the top unit, the one with the C79/C12 we serve the audioband between aprox 200 and 20kHz and this is driven by the Golidav Tube amp. In the test versions and all other loudspeakers I have heard with a C79/C12, you will notice the great teamwork of this couple. The idea is, that with a serial filter, where the energy is divided over the 2 units very homogeneously, this audio band would sound very smooth. With full active approach I am not too sure, plus the fact I have no amps to drive the C79 (yet :-). OK, so lets try both then !! Exactly, that is what I will do. Easiest to start with the passive version ofcourse.... In the below links I will fill the Site with information and listening experiences, as time and developments evolve........

I like to link here to the Site of Tony Gee, who did a great Job on some BACKGROUNDS on serial Filters !!!
(saves me a lot of work, hahaha :-)



As this will be also with quite some images and text, I split up in chapters as we go. Just follow the links below

1. First measurements in final enclosure without filter

2. Measurements with 2 alternative filter configurations and listening test

3. ???




To be continued (September ??)

Please keep checking !!


Happy listening and building !!

Doede Douma

IMPORTANT: The information provided on this page is intended as guide for DIY activities and therefore free to copy and or publish. If any one wishes to use any of the information from my WEB site, please make sure to refer and footnote to my URL Link as source! Doede Douma