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haralanov wrote:

My driver has not even a single trace of  tizzing top end. Tizzines is intrinsic feature of ribbon drivers (including RAAL), not of well designed paper drivers. Actually, the heart of my acoustic system is ultra high performing midrange – high midrange driver with central alnico magnet, wooden spider and leather surround. You could see it here:   http://bgaudio.org/forums/viewtopic.php?f=1&t=17682 Now I’m listening to even better drivers (field coil) powered with 10 x 12V accumulators. You can see a close shot of the paper it uses…

Haralanov, your diver might be a very good MF diver but it does not go to region where the “tizzing” live. It just has too large and to heavy diaphragms for it. You can take driver from 30 and 40s (Telefunken, Klangfilm, Tesla and few others) and accommodate them for MF. They have similar to your diver paper structure and generally they sound fine. However, you can’t not make the claims that those drivers does not do “tizzing” as they are juts MF diver and perform more or less comfortable in sub 7kHz area. What you saying is similar to somebody saying that a compression driver tweeter does not have the “boomy baas”.  I also disagree with ribbons. Tizzines is not an intrinsic feature ribbons, it might be if ribbons are not properly used. But anything if not properly used sound like shit…

The better field coil driver powered with 10 x 12V accumulators? Hm, you claim that you were not able to make a PS that would power your driver to a sufficient level of sound? Are you sure about it? At 12V you can use 5F-6F car capacitors that shall cancel any PS influence… I do not know, the buttery-powered electromagnets is too unpractical in my view.  I do like your diver, the suspensions is very cool but still it is very difficult to evaluate how effective all of it and how it sound in reality unless one heard the thing.

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