Rerurn to Romy the Cat's Site
In the Forum: Audio Discussions
In the Thread: Passive transformer based preamp
Post Subject: Re: Very HF and amorphous materials?Posted by Thorsten on: 11/7/2005
Hi,
 Romy the Cat wrote: |
| T, would you elaborate on it if you feel that it has any merit? |
|
Really, I do not know. From my limited experience I have found that multiway active systems are very much a tuning excercise par excellance. Given that all these multiple drivers have distinctly sonic signatures it is usually hard to achieve coherence. Using different Amplifiers can be used to get the combined tonality back to "neutral" or to wherever it is supposed to be, but it means optimising together each Amplifier/Driver combo.
Often however it is very difficult to achieve these complementary colorations and thus often coherence is lost further, rather than being regained. Hence often completely identical amplifiers for all channels (or at least as identical as possible) seem to hold things better together.
With my friends big 2-Way electrostatics (they cover 120Hz-5KHz in one panel and above 5KHz in another) we found that topologically similar amplifiers with similar parts and simple passive RLC crossovers and equalisers gave best coherence. Add an amplifier with greatly different parts or topology and the music plays different tunes.
In that case BTW the drivers for HF and LF are very similar, use identical construction methodes and materials and only size of surface and airgap as well suspension is varied to optimise each ESL panel for the intended frequency range.
Much rambling and very little information, sorry, but maybe it helps.
Ciao TRerurn to Romy the Cat's Site