There is a lot of time, effort, and money going into a test like this. You can certainly disagree and challenge his methodology, but calling it silly is simply just impolite.
If you are interested in what different amps sound like under same condition.
http://www.diyaudio.com/forums/solid-state/295286-virtual-audition-very-simple-quasi-mosfet-amp.html
http://www.diyaudio.com/forums/solid-state/295286-virtual-audition-very-simple-quasi-mosfet-amp.html
this Plasma "probably" can outperform any other pricey tweeters on the planet including RAAL, TAD, Fostex, you name it. this transducer has no moving part no membrane no voice coil no nothing!
I think I read somewhere it's worth 6K Euro a pair. Lansche Audio is fundamentally based on this tweeter.
I can confirm that as I'm heard both. IMO Aurum Cantus Ribbona and AMTs (they call it Aero Striction) is way better than Fountek stuff.
Lansche Audio has solved Ozone issue. their tweeter has a ceramic compression chamber (exactly at the throat of the horn) and ceramic is heat insulator so the temperature in there will increase consequently and the heat will decomposes Ozone molecular connections and turn it to something else (I think oxygen)
Tweeters have to be matched with the right midwoofer or mid. So it's not the easiest question to answer. Over on Tech Talk the main guys there like Jeff, Wolf, Roman and Pete Schumacher have used pretty much every tweeter.
It seems that the Raal tops the ribbons and a Scan tops the dome tweets over on that forum. Many others are highly regarded inc SS and TL beryllium domes, viawave ribbon, , the Aurum Cantus AST and the SB satori tweets.
It seems that the Raal tops the ribbons and a Scan tops the dome tweets over on that forum. Many others are highly regarded inc SS and TL beryllium domes, viawave ribbon, , the Aurum Cantus AST and the SB satori tweets.
It's possible improvements have been made since then. Regardless, I would need to see measurements before laying down that kind of money.
regarding one plasma tweeter, don't forget Paul Klipsch's comments
I had to laugh when I read this Freddy. I certainly respect Mr. Klipsch but he thought exponential horns sounded good.
Nope.
Midrange + Tweeter is the only tests i think i'm able to organize in a scientific manner.
Are the plasma tweeters really THAT good ? I have not read any source so far that describes EXACTLY what is going on at a physical level. I.e. how exactly the sound is generated. Does the plasma-flame occupy more or less space, depending on power ? Does it work by thermally modulating the air density ? Is the mechanism in action really linear ?
Is the translation input-voltage to soundpressure linear at all ? Keep in mind that the RF power oscillator is amplitude modulated. The supply voltage is varied around a middle value. Power delivered to the oscillator does not behave linearly in terms of input voltage but as a quadratic function.
Questions, questions, questions .......
Maybe PWK is still right today.
Regards
Charles
Is the translation input-voltage to soundpressure linear at all ? Keep in mind that the RF power oscillator is amplitude modulated. The supply voltage is varied around a middle value. Power delivered to the oscillator does not behave linearly in terms of input voltage but as a quadratic function.
Questions, questions, questions .......
Maybe PWK is still right today.
Regards
Charles
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